1. Look! The singer (come)………………….… She (have) ………….long black hair. 2. My mother (drive) …………………………me to school everyday. 3. Tuan (have).............................. a new bike yesterday. 4. She (not buy).................................. a new ruler yesterday. 5. He (not talk)................................. with his parents about his vacation in Da Lat last year. 6. They (come).................................. school yesterday? 7. Students must (go) ………….…….to school on time. 8. Where Son (be)……….……? He (read) ……books in the library.

Các nhóm gồm khí đều cháy được : A : Co2,CO B : CO,H2 C : O2,CO2 D : Cl2,CO2

Giải các phương trình a, 11x + 42 - 2x = 100 - 9x - 22 b, 2x - (3 - 5x) = 4 (x + 3) c, x (x + 2) = x (x + 3) d, 2 (x - 3) + 5x (x - 1) = 5$x^{2}$

35 In/ past/ most/ girls/ like/ knit/ sweaters/ themselves. A: In the past most girls like to knit sweaters for themselves. B: In the past most girls like knitting sweaters for themselves. C: In the past most girls liked to knitting sweaters for themselves. D: In the past most girls liked knitting sweaters for themselves. 36 Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: She is very good at knitting. She __________ herself this sweater. It looks very nice. A: knits B: is knitting C: knitted D: knit 37 Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: Do you know who’s _____________ his pottery workshop? A: passing down B: turning down C: taking over D: bringing out 38 Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: Since changing the way of production, many craftsmen have voluntarily joined together to for ___________ . A: cooperative B: cooperation C: cooperatives D: cooperates 39 Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits blank (28). We went to Doi Tam, a village famous (25)______ its drum making techniques, in Ha Nam Province last month. The craft was first introduced to the village sometime in the 8th or 9th century. Today there are more than six hundred drum makers living in Doi Tam village. #x200eI was amazed to see big drums in front of every house in the village. People say that it (26)______ four workers three days to make a drum with a diameter of 1.5 metres. To make a drum, the craftsmen have to follow an eight-stage process. Stretching the drumhead is the most challenging stage (27)_______ they have to carefully assess the sound it makes. The other steps do not require such high skills. #x200eNowadays, Doi Tam drums are not only famous in Viet Nam but are also (28)_______ to other countries such as Laos, Cambodia, Japan, and the USA. A: be sold B: sell C: selling D: sold 40 Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions . A: drumhead B: pollution C: cultural D: luxury

Giúp Mik với ạ nhé các bạn 30 điểm

A=5/2m+1 và B=4/2m-1 hãy tìm các giá trị của m để hai biểu thức ấy có gtri thỏa mãn hệ thức a) 2A+3B=0 b)AB=A+B

giúp mk vs ạ mk cần gấp, mk vote 5 sao cho người trả lời đúng luôn ạ :(

Cho 4,8 g mg tác dụng hoàn toàn với 150ml dd hcl sinh ra khí h2 ( đktc) a, Tính thể tích khí h2 thu được b, Tính khối lượng muối thu được sau phản ứng c,Tính nồng độ mol hcl đã dùng

Giúp mk bài 4,5 nha Ko cần vẽ hình đâu ak

Câu 3: Khi nhiệt kế thủy ngân nóng lên thì cả bầu chứa làm bằng thủy tinh và thủy ngân đều nóng lên. Tại sao thủy ngân vẫn dâng lên trong ống thủy tinh?