Each boy and each girl ___________ a book. A. are having B. have had C. have D. has

Có một dd hỗn hợp A gồm 0,1 mol HCl và 0,02 mol H2SO4. Cần bao nhiêu ml dd NaOH 0,2M để trung hoà dd A.

Cho 6,5 gam Zn vào bình đựng dung dịch chứa 0,25 mol HCl. Thể tích khí H2 (đktc) thu được là:

Các bạn giúp mk 3 câu nhỏ này thôi

Khi nào khối lượng riêng của nước lớn nhất?

Thành tích của một học sinh trong giải điền kinh ở nội dung chạy cự li 1000m với thời gian là 2 phút 5 giây. Vận tốc trung bình của học sinh đó là A: 4,88m/s B: 8m/s C: 40m/s. D: 120m/s

Cho 1.2g Mg vào 50ml dd HCl 3M . a/ Viết ptpư b/ Tính thể tích H2 thu được (đkc) c/ Tính nồng mol dd sau pứ ( thể tích dd thay đổi không đáng kể )

Exercise 1. Find the word which has a different sound in the part underlined. 1. A. roses B. villages C. colleagues (bạn đồng nghiệp) D. matches 2. A. worked B. stopped C. forced D. wanted 3. A. says( gạch chân: a) B. lays C. plays D. stays 4. A. waited B. mended C. objected D. faced 5. A. talked B. naked C. asked D. liked 6. A. succeeds B. devotes C. prevents D. coughs 7. A. kissed B. helped C. raised D. forced 8. A. picked B. watched C. helped D. wicked Exercise 2. Choose the best answer to complete the following sentences 1. John was ill, ______ he went to bed early. (but / so / because of / however) 2. She drank it to keep herself warm ______ she dislikes coffee. (although / because / because of / despite) 3. I like bananas, ______ my brother doesn’t. (because / but / and / even though) 4. She was absent ______ her cold was worse. (because / or / because of / so) 5. The examination was long ______ difficult. (or / and / but / however) 6. He likes to travel, ______ so does she. (and / or / but / therefore) 7. Is it a boy ______ a girl? (and / but / or / therefore) 8. It was still painful, ______ I went to see a doctor. (but / so / or / however) 9. It is raining, ______ I can’t go to the beach. (so / but / or / and) 10. Mary will take a plane ______ she dislikes flying. (even though / because / and / in spite of) Exercise 3. Read about Fiona Campbell’s journey. Fill in the gaps with the Past Simple of the verbs in brackets. Fiona Campbell was the first woman to walk around the world. She (1. start) …………. her journey in the UK in 1983 and then in 1985 she (2. walk) ……….. across the USA. In 1988 she (3. go) ……… from Sydney to Perth in only 95 days. On April 2nd 1991, Fiona (4. leave) …… Cape Town in South Africa. She (5.arrive) ………... in Morocco 29 months later - a journey of 10,000 miles. Then she (6. walk)……..…. across Europe and (7. finish)……….. her journey in October 1994. She (8. travel) …..………… 19,586 miles and (9. raise) ………… £120,000 for charity. Fiona also (10. write) ………… a book about her journey called The Whole Story. Exercise 4. Correct the underlined words where necessary 1. She failed because she didn’t work hard 2. However it was raining heavily, We canceled the game. 3. I like soccer very much. But I can’t play it. 4. There was a serious accident on National Road 1 So the traffic was heavily blocked. 5. She can’t see well so she has to wear glasses. 6. Everybody loves him because he is always ready to help. 7. The teacher ended the class earlier than usual however she had something to do. 8. The alarm unfortunately stopped working but he was late for class. Exercise 5. Combine sentences (Using the words given in the blankets) 1. She earns a lot of money, but she never wastes it (although) -> ............................................................................................... 2. Mr. An has a laptop computer, but he rarely use it (Though) -> ............................................................................................................ 3. My sister doesn’t really enjoy the job, but she works very hard (Even though) _-> ........................................................................................................... 4. The forecast said it would rain. It turned out to be a beautiful day. (although) -> ........................................................................................................... 5. I'm not better . I've taken the bill. (Even though) -> ............................................................................... 7. He didn't notice the sign. It was right in front of him. (though) -> ............................................................................................................ Exercise 6. Complete the passage with suitable words in the box sight early bay beach taxi went lunch can wonderful late could came coach will go seafood Yesterday, all the students in class 6A visited Ha Long (1) …… . They got on a (2) ………….. at 6 o’clock. They arrived the bay very (3)………. . They (4) ……… on a big boat. They enjoyed the beautiful (5) ………. as their boat sailed around the bay. They (6) ……… see colorful corals and fish under the water. At noon, they stopped on an island and had (7) ……………for lunch. What a (8) ………….. trip!

trong khoảng từ 32 đến 98 có bn số chẵn ? A. 34 B. 35 C. 33 D. 66 cho A = x e Z / -3 < x < 1 .Số phân tử của tập hợp A là A. 3 B. 4 C. 5 D. 6 ƯCLN ( 12 , 24 , 6) A. 12 B. 6 C. 3 D. 24 tổng 21 + 45 chia hết cho số nào sau đây A. 3 B. 9 C. 5 D. 7 kết quả ( -17) + 21 bằng A. -34 B. 34 C. -4 D. 4

viết 1 đoạn văn chủ đề tự chọn Tìm các động từ trong đoạn văn đó và phân loại các động từ (cấm chép mạng, chép spam) ko vt quá dài