tóm tắt chiến dịch biên giới Thu - Đông 1950

Trình bày chi tiết cuộc thám hiểu cuộc phát kiến của Magellan

Những thành tựu mà Trung Quốc Đạt được từ năm 1978 đến năm 2000 có ý nghĩa như thế nào khi Trung Quốc bước sang thế kỷ 21? Theo em, Việt Nam có thể học hỏi được bài học kinh nghiệm nào từ công cuộc cải cách mở cửa của Trung Quốc

Cho một bạn động từ bất quy tắt tiếng anh

Bài 5: Tìm số tự nhiên x biết

a) 25 chia hết cho x1

b) 36 là bội của x+1

c) x+8 là bội của x+1

Thế nào là nhiệt độ ko khí ? Trên trái đất có mấy đới khí hậu ?

5.I______her since I______a student.

A.know/ am B. knew/ was C. have known/ am  D. have known/ was

6.______get tired of answering the same questions every day?

A.Have you ever C. Had you ever

B.Do you ever D. Are you ever

7. She______working on that manuscript for 2 year now.

A.will be C. has been

B.had been D. is

8. I______there once a long time ago and______back since.

A.went/have not been C. go/am not

B.have gone/was D. was going/had not been

9. In the last hundred years, traveling much easier and more comfortable.

A.becomes B. has become C. became D. will become

10. It is raining now. It began raining two hours ago. So it______for two hours.

A.rains B. is raining C. has rained   D. rained

11. Mike is playing chess. How long______he ?

A.did/play   C. is/playing

B.has/play   D. has/been playing

12. Today is Thursday and she______late twice this week. She______late yesterday and on Monday.

A.is/was                  C.has been/was

B.has been/is        D.has been/had been

13. He______ in the same house since 1975.

A.has lived C. lived

B.is living D. had lived

14. We______him since he______married.

A. didnt see/got C. havent seen/got

B. dont/get D. hadnt seen/got

15. It______for two hours and the ground is too wet to play tennis.

A. is raining B. had rained C. has rained  D. was raining

giải thích hộ mik vs ạ 

Điền: bring about, bring down, bring in, bring out, bring back, bring off, bring on, bring up
1. Jane's new boyfriend has ________ a comlete change in her behavior.
2. They've just ________ a new digital camera which is excellent
3. Her illness was ________ by stress at work.

giải thích luôn ạ

His boss likes him because of his efficiency.
-> Such ______