1. You must wash your hands before lunch…………………… 2. You mustn't listen to your parents. ………………… 3. You must break the windows at school. ………………… 4.You must take a shower every day. ………………… 5. You mustn't eat fruit and vegetables every day. ………………… 6. You must eat lots of sweets if you want to lose some weight. ………………… 7. You must feed your dog every day. ………………… 8. You mustn't fight in the playground. ………………… 9. You must eat in class. ………………… 10. You mustn't be late. ………………… Giúp mik nhé thak u!!!!

mọi người làm hộ em cái, vừa làm mấy bài lớp 7 (em học trước :>) dài mấy trang mỏi tay quá bỗng nhiên cô lại gửi cái đề này nữa :( B. Bài tập chuyển đổi thì hiện tại hoàn thành sang quá khứ đơn 1) This is the first time he went abroad.
 =>He hasn't................................................................................ 2) She started driving 1 month ago.
 =>She has.................................................................................. 3) We began eating when it started to rain.
 =>We have................................................................................. 4) I last had my hair cut when I left her.
 =>I haven't.................................................................................. 5) The last time she kissed me was 5 months ago.
 =>She hasn't............................................................................... 6) It is a long time since we last met.
 =>We haven't............................................................................. 7) When did you have it ?
 =>How long ............................................................................?
 8) This is the first time I had such a delicious meal .
 =>I haven't.............................................................................. 9) I haven't seen him for 8 days.
 =>The last .............................................................................
 10) I haven't taken a bath since Monday.
 =>It is ...................................................................................... 11) Samuel started keeping a diary in 1997 Samuel has __________________________ 12)We started learning English fìve years ago. We have ______________________________ 13) I began living in Ho Chi Minh City when I was 8. I have __________________________________ 14) She has taught the children in this remote village for five months She started _________________________________ 15) He has written to me since April. The last time ________________________________ 16) She hasn’t had a swim for five years She last ________________________________ 17) They last talked to each other two months ago They haven’t ________________________________ 18) The last time she saw her elder sister was in 1999 She hasn’t ________________________________ 19) She hasn’t written to me for years It’s years _______________________________ 20) Robert and Catherine have been married for ten years. It’s ten years _______________________________

đặt 1 câu có sử dụng cặp quan hệ từ chỉ nguyên nhân nói về môi trường

Một bể nước dạng hình hộp chữ nhật có chiều dài 3m, chiều rộng 2m và chiều cao 1,5m. Người ta mở các vòi nước cho chảy vào bể ( không có nước ) . Biết rằng cứ 2/3 giờ thì chảy vào bể được 3000l nước . Hỏi với sức nước chảy như vậy thì bao nhiêu lâu sẽ đầy bể nước

cho 57,3g hh na2co3 và k2co3 vào dd hcl 15% vừa đủ. Dẫn lượng khí sinh ra qua nước vôi trong có dư thu được 45g kết tủa. Tính khối lượng mỗi muối trong hh đầu và nồng độ các chất sau phản ứng. AI GIÚP EM VỚI EM CẦN RẤT GẤP Ạ EM CẢM ƠN Ạ

Giải thích giùm em câu này với ạ *** Many people believe that doing sports is a good way to lose weight. A. Doing sports is believed to be a good way to lose weight. B. It is believed that doing sports be a good way to lose weight. C. A good way to lose weight is to be doing sports. D. Doing sports is believed that it is a good way to lose weight

Hỗn hợp M gồm các khí sau: C2H4, SO2, H2, CO2, CO. Bằng phương pháp hóa học làm thế nào để nhận ra sự có mặt của mỗi khí có trong hỗn hợp M. Viết các phương trình phản úng hóa học xảy ra.

Khoảng cách giữa hai điểm trên bản vẽ là 2cm. Khoảng cách thật là 1km. Tỉ lệ xích của bản vẽ là : Giari thích Để phân số 3/n - 1 có giá trị nguyên, thì tập hợp số n là : giải thích Một lớp học có 48 học sinh, trong đó 12,5 % học sinh giỏi, số học sinh giỏi là : giải thích Số hs giỏi khối 6 là 118 HS, chiếm 23,6%. Số HS khối 6 là : giải thích

Các cách để chứng minh hình thang cân

I __________do the laundry every2 days You __________ stay out too late. You ___________ break the class’s rule My mother doesn’t want me to arrive home late, so I __________ leave now. Those boys ___________ finish their homework before going out. Jim ___________ finish his essay today because he’s very busy tomorrow. Passengers___________ use phones on the plane. You __________ be late for school tomorrow. Children _______________ be accompanied by an adult when visiting this dangerous place. I ____________ be home before dinner. Students_________ talk during the exam. You ____________ cheat in a test. There _____________ be someone upstairs. I can hear the noise. We _____________ give up on what we are doing. You __________ let strangers enter the house while I’m not in. Bài 5: Hoàn thành các câu sau bằng động từ khuyết thiếu “must“hoặc “have to” và động từ trong ngoặc. I _________learn Japanese. I need itmy job. I _________learn Japanese. I love it. I _________ wake up early tomorrow.I want to watch the sunrise. I ________ wake up early tomorrow. I have a meeting early in the morning I ________ wear a black dress because I want to look good. I _______wear a black dress because that is the requirement of my company. I __________ go home now because it’s too late. I __________ go home now because I have a lot to do. I _________go to see my friend because I miss her. I _________ go to see my classmate because we work on the same project. You ________ wear a tie in the company. It‘s one of their rules. I ___________ go abroad next week. My boss wants me to sign a contract with our foreign customers. I __________ work harder. I want to be successful. This room is mess, I _____________ find time to clean it! You really ___________ stop driving so fast or you’ll have an accident! Bài 6: Điền động từ khuyết thiếu “mustn’t” hoặc “don’t have to“ vào chỗ trống để hoàn thành các câu sau. You _______________pick me up tomorrow. I will take a taxi. Look at that sign! You ___________ walk on the grass. You __________ blame anyone for your mistakes. You need to be responsible for yourself. You __________ be absent from class tomorrow because the teacher will check your attendance. I ____________ prepare dinner because we will eat out tonight. You _________ leave any rubbish here. It is forbidden. You __________ let anyone know that. It is a big secret. You __________ come early tomorrow because the event will start late. You __________ park your car here. There is a”No parking sign” We don’t have much money left. We _____________ waste anymore. They __________ forget their homework at home. I ____________ do the housework because I have a maid do it for me. They ____________ break the rule that way. It is unacceptable. I ____________ use the computer after 11pm because my mother doesn’t allow me to. You __________ buy that book. I will lend you mine. Bài7. Đánh dấu (V) trước câu đúng, đánh dấu (x) trước câu sai và sửa lại cho đúng It’s raining outside. Tim has to take his umbrella. ___ ……………………………………………………… I can give you a hand. So you mustn’t do it alone. ___ ……………………………………………………….. They mustn’t be hurry because the film starts late. ___ ……………………………………………………….. You must stop at the red light. ___ ………………………………………………………. Tomorrow is Monday but I mustn’t go to work. ___ ……………………………………………………… I am short-sighted so I must wear glasses. ___ ………………………………………………………… You mustn’t smoke here. There are a lot of children around you. ___ ……………………………………………………………………… Everyone have to bey the school’s rules. ____ …………………………………….................. It is warm today so we mustn’t wear thick coat. ____ …………………………………………………. My father will buy me a bike so I don’t have to walk to school any more. ___ ………………………………………………………………………………