Bài1 1.The students often collect waste paper for(recycle)...... 2.if he reads in bad light his eyes(ruin).... 3.she(phone).......you as soon as she (come) .......back 4.I(wait).......in the school yard until she comes Bài 2: 1.arrive/the theatre?/at/What time/you/did 2.play/games/your family/Dose/sometimes/together ? Bài 3: 1.she/usually/practice/guitar/after/school. 2.He/learn/play/guitar/now 3.would/you/come/my house/ lunch/?/ 4.We/have/English/Wednesday/and/Thursday 5.In/afternoon/Nam/usually/go/home/and/watch/videos làm nhanh hộ mik nha!

Giúp mik vs mik cần gấp mik cảm ơn trc nha😗

53. She __________the painting when I came. A. painted B. has been painting C. was painting D. has painted 54. When I was a boy, I _____________tea to coffee. A. preferred B. was preferring C. have preferred D. prefer 55. I _____________swim in this river when I was young. A. was used to B. am used to C. used to D. use to 56. She came into the room while they ______________television. A. are watching B. were watching C. watched D. have watched 57. It's an hour since he ____________, so he must be at the office now. A. is leaving B. was leaving C. has left D. left 58. He __________up his mind yet. A. hasn't made B. didn't make C. wasn't making D. wasn't make 59. My teacher arrived after I __________________for him for ten minutes. A. was waiting B. had waited C. waited D. have waited 60. By the end of next year, George ___________English for two years. A. will learn B. will have learned C. would learn D. has learned 61. The children are still ill but they __________better gradually. A. getting B. get C. are getting D. are got 62. Tom and Mary _________for Vietnam tomorrow. A. have left B. leaving C. leave D. are leaving Giúp vs ạ

giúp mk nha trả lời kĩ mình cho ctlhn và vốt 5 sao

Các enzyme xúc tác phản ứng thường có cấu trúc protein bậc mấy? Giải thích.

tìm x y z biết x-y=-9 y-z=-10 z+x=11

(6x^3-5x^2+4x-1):(2x^2-x+1) (x^4-5x^2+4):(x^2-3x+2) (x^3-2x^2-5x+6):(x+2)

Trong trường hợp nào a xit H2SO4 có tính chất hóa chọc chung của một axit. Hãy cho biết những tính chất đó là những tính chất gì ?

ai nhanh mình vote 5* + ctlhn + cảm ơn nha

Điền từ : I am visiting Ha Long Bay (1) .... June . (2)...... you have a double room with a shower for these days ? How (3)..... is the room ? We would like (4).... room facing the sea if it is possible . We (5).... eat meat but we(6) .... all other kinds off food. We are arriving(7) .... Ha Long Bay (8)... about six o'clock on Monday evening.We plan to leave hotel (9)... Sunday morning . I (10)..... forward to hearing from you soon .