Giúp mình nha cảm ơn bạn rất nhiều

Đồng bằng rộng lớn nhất ở châu Á là A: đồng bằng Tây Xi-bia. B: đồng bằng Hoa Bắc. C: đồng bằng Lưỡng Hà. D: đồng bằng Ấn – Hằng.

II. Circle the best option to complete each sentence: ( HTHT) 26. We have lived in this town _________ 1998 a. for b. since c. ago d. in 27. “Let’s go to the new movie down town”. “Thanks, but I _________ it already” a. have seen b. saw c. had seen d. ever seen 28. _________ flown in an aero plane before? a. Have you ever b. Had you ever c. Are you d. Do you 29. Jack _________ his homework yet, so he won’t go out with his friends a. finish b. has finished c. doesn’t finish d. hasn’t finished 30. I’ve worked here _________ six years a. for b. since c. over d. in 31. They _________ married for 22 yearsa. have got b. have been c. was d. got 32. Robert _________ in three important water polo games so far a. played b. had played c. is playing d. has played 33. Nothing _________ in this town since I first visited it a. changed b. was changing c. changes d. has changed 34. Because Lan _________ breakfast, she isn’t hungry now a. was eating b. eats c. ate d. has eaten 35. Up to now, I _________ a lot of information about her a. will learn b. learnt c. would learn d. have learnt 36. She has worked as a secretary _________ she graduated from college a. since b. until c. before d. while 37. I’m a vegetarian. I _________ meat since I was a child a. haven’t eaten b. don’t eat c. haven’t been eating d. am not eating 38. I _________ here for ten years a. lives b. am living c. live d. have been living 39. Tom was leaning against the wall, out of breath. He _________ a. was running b. has been running c. has run d. would run 40. I’m sorry, Mrs Johnson hasn’t _________ a. arrived just b. already arrived c. arrived already d. arrived yet 41. My cousins _________ seen a kangaroo a. have never b. never have c. has never d. haven’t never 42. I _________ to London five times already this week a. went b. have gone c. have been d. was going 43. Margaret has _________ here since February a. being worked b. working c. been working d. been worked III. Circle the best option to complete each sentence: 44. He felt very sleepy _________ he had eaten too much a. of b. at c. after d. before 45. When we arrived, the train _________ the station a. already left b. had already left c. had left already d. has left already 46. I called you at 8:00 am, but you _________ out a. went b. just had gone c. had just gone d. had gone just 47. Lisa _________ me a ride because I _________ the bus a. gave/had missed b. gave/missed c. had given/missed d. had given/had missed 48. _________ I went to bed, I’d taken a bath and brushed my teeth a. After b. When c. If d. Before 49. Before I _________ to him, his sister _________ me this news. a. talked/ gave b. will talk/gave c. talked /had given d. talk/ had given 50. He ___________the work by the time I came. a. finishes b. finished c. was finishing d. had finished làm giúp mình nhé

Cho 8 gam đồng 2 oxit tác dụng vừa đủ với 142 gam axit Clohiđric a.Tính nồng độ phân trăm dung dịch axit Clohiđric tham gia phản ứng . b. Tính nồng độ phần trăm của dung dịch muối thu được. "Giúp em với ạ"

Tính : [(-9)+15].(-5) 7.5^0 +9.(-3)-(-27) (-15-12):9+5-13.(-2)+(-64):8 Giúp mình vs ạ đang cần gấp

cho tam giác abc có ab=18cm ac=32cm bc=40cm cmr goc a=1/2 b

Lập dàn ý đề văn sau: viết đoạn văn khoảng 200 chữ bày tỏ suy nghĩ về trách nhiệm của em với cộng đồng trước thực trạng bệnh covid hiện nay

Vì sao nhân vật tôi lại những hành rồi đến hãnh diện sau đó là xấu hổ

Nguyên nhân nào không tạo điều kiện cho nền kinh tế Mĩ phát triển trong và sau Chiến tranh thế giới thứ hai? A: Nguồn lợi từ các thuộc địa. B: Được yên ổn sản xuất và bán vũ khí cho các nước tham chiến. C: Không bị chiến tranh tàn phá. D: Tập trung sản xuất và tư bản cao.

Mn giải giúp em với ạ Một người đi xe máy từ A đến B dự định mất 3h20p. Nếu người đó tăng vận tốc thêm 5km mỗi giờ thì sẽ đến B sớm hơn 20 phút . Tính khoảng cách AB