mọi người giải giùm mình mấy bài tập toán này đc ko ạ

Từ dợn dợn có hiệu quả nghệ thuật gì trong khổ thơ 4 của bài tràng giang

Tìm m để phương trình có hai nghiệm x1,x2 thỏa mãn điều kiện x1-x2=4

10. You ……………… like horror films! When did you start watching them? A. used to B. didn’t use to C. don’t use to D. didn’t used to 11. Does your bike ever ………………. on the way to school? A. break down B. break on C. break up D. break to 12. I ……………… go on foot when I was in primary. A. have to B. used to C. can D. may 13. I had to stand in the balcony to watch the whole ………………of the parade. A. view B. picture C. sight D. vision 14. The end of the film was so ……………… A. moved B. moving C. move D. movable 15. She went to work yesterday ……………… her sickness. A. although B. despite C. nevertheless D. however Find and circle the mistake: 16. It takes me 20 minutes riding to school. A B C D 17. I prefer science fictions to active films. A B C D Choose the most suitable response to complete each of the following exchanges: 18. “Would you like to go to the cinema this weekend?” -“……………” A.I don’t care. B.OK. You did it. C. Great! I can’t wait. D. I don’t like it. Choose A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following sentences: 19. Many people TAKE PART IN an annual cheese- chasing competition on Cooper’s Hill. A. appear B. participate in C. get stuck in D. lead in 20. Mr Bean is a HILARIOUS film- I laugh from beginning to end. A. frightening B. funny C. scary D. difficult

1 tại sao phải làm chín thực phẩm ; 2 cho biết sự khác nhau giữa nấu và luộc

Giải bpt này hộ mình vs ạ để tìm tập nghiệm

đánh dấu nhấn phân biệt trọng âm trong bài TĐN số 6: Chỉ có 1 trên đời

EXERCISES A. PERSONAL HYGIENE I. Điền vào chỗ trống các từ thích hợp: health personal hygiene harvest helpful strange carefully 1. Farmers are very busy during ……………… 2. You should wash regularly to ensure …………… 3. Swimming is good for your …………… 4. My father always drivers …………… 5. She always helps her mother do the housework. She’s very …………… to her mother. 6. He’s a new student. Everything is ……………to him. II. Điền từ vào chỗ trống: What When Where How Who How often What time 1. ………………… does she iron her clothes? – On Sundays. 2. ………………… did you do last weekend? – I went fishing with my father. 3. ………………… do you clean your room? – Three times a week. 4. ………………… helped Hoa make her skirt? – Mrs. Mai. 5. ………………… did Ba eat his breakfast this morning? – At half past six. 6. ………………… did your father go last night? – He went to my grandparents’ house. 7. ………………… did you buy this dress? – Yesterday morning. 8. ………………… does Nam go to school? – By bike. III. Chọn đáp án đúng: 1.………you do your homework last night?- Yes, I did. A. Do B. Did C. Are D. Will 2. He ………to the zoo last Sunday. A. goes B. went C. is going D. will go 3. Hoa’s mom wants her …………. exercises regularly A. do B. did C. does D. to do 4. ………. are Hoa’s parents busy? - Because it’s harvest time now. A. What B. Why C. When D. How IV. Đổi các câu sau sang thể phủ định và nghi vấn: 1. Mary was happy at school yesterday. (-)……………………………………………………………………………….. (?)……………………………………………………………………………….. 2. Hoa received a letter from her mom last week. (-)……………………………………………………………………………….. (?)……………………………………………………………………………….. V. Sắp xếp những từ sau thành câu có nghĩa: 1. how/ Hoa/ yesterday/ a/ use/ sewing/learned/ machine/ to/. ……………………………………………………………………………….. 2. stay/ candy/ too/ up/ eat/ don’t/ much/ and/ late/. ……………………………………………………………………………….. 3. exercises/ regularly/ to/ healthy/ keep/ take/ stay/ morning/fit/. ……………………………………………………………………………….. VI. Chia động từ trong ngoặc: Yesterday (be)………… Sunday, Nam (get)………… up at six. He (do)………… his morning exercises. He (take)………… a shower, (comb)………… his hair, and then he (have)…………… breakfast with his parents. Nam (eat)…………… a bowl of noodles and (drink)………… a glass of milk for his breakfast. After breakfast, he (help)…………… Mom clean the table. After that, he (brush)………… his teeth, (put)………… on clean clothes, and (go)………… to his grandparents’ house. He (have)…………… lunch with his grandparents. He (return)………… to his house at three o’clock. He (do)………… his homework. He (eat)…………… dinner at 6.30. After dinner, his parents (take)………… him to the movie theater. It (be)………… a very interesting film. They (come)………… back home at 9.30. Nam (go)………… to bed at ten o’clock.

Đốt cháy hoàn toàn 7,2 gam magie trong bình chứa khí O2 a. Hãy viết phương trình hoá học. b. Tính thể tích khí O2 (ở đktc) đã tham gia phản ứng trên. c. Tính khối lượng KClO3 cần dùng để khi phân huỷ thì thu được một thể tích khí O2 (đktc) bằng với thể tích khí O2 đã sử dụng ở phản ứng trên. Cho: O =16; K=39; Mg = 24; Cl = 35,5

Câu 6: Vật sáng AB vuông góc trục chính TKHT và cách TK 30 cm, cho ảnh A’B’ cao gấp 3 lần AB. Xác định tiêu cự TK? Vẽ hình