1. They ................... students yesterday. A. am B. is C. was D. were 2.They ............. doctors two years ago. A. am B. is C. was D. were 3. They ............... farmers last month. A. are B. is C. was D. were 4. We ....... nurses yesterday. A. am B. is C. was D. were 5. The weather ........cold yesterday. A. am B. is C. was D. were 6. I .........a pupil last week. A.aren’t B. isn’t C. wasn’t D. weren’t 7. My parents........teachers two years ago. A. am B. is C. was D. were 8. ... he an engineer yesterday. No, he ...... A.is/ isn’t B.are/aren’t C.was/wasn’t D.were/weren’t 9. .......It hot last week? A. am B. is C. was D. were 10. Where ......Nam from yesterday? A. am B. is C. was D. were cấm spam

Đơn giản biểu thức: a, (a+b-c)-(b-c+d) b,-(a-b+c)+(a-b+d) c,(a+b)-(-a+b-c) d,-(a+b)+(a+b+c) Giúp mình với

Ai giải chi tiết bất phương trình câu này giúp em với ạ .

Các bạn giải giúp mình nha mình cảm ơn

Em không biết làm bảng này giúp em với ạ

Cho a>b;Tính/S/ biết: S=-(a-b-c)+(-c+b+a)-(a+b)

muốn 5* thì trả lời mik mng ơi 20. They will complete the new high way from north to south next year-> 21. The teacher won't accept papers written in pencils-> 22. This team will win the prize by any means->. 23. People drink a great deal of tea in England -> 24. Look! Helen is carrying a basket of pears->. 25. The police has just caught the thief-> 26. Terrorists have attacked many cities in the world for months->, 27. Nobody has locked this door->. 28. I have seen that play many times ->.. 29. Did you give Linda an English - Vietnemese dictionary in her birthday ? 17.The war destroyed all the ancient constructions -> 30. You must give more care to your work -> 31. Why didn't you buy these books? ->. 32. Mozart wrote more than 600 pieces of music ->.

vai trò và ý nghĩa của thành công

Tinh thần yêu nước của nhân dân ta: Để chứng minh cho nhận định: “Dân ta có một lòng nồng nàn yêu nước. Đó là một truyền thống quý báu của ta”, tác giả đã đưa ra những dẫn chứng nào và sắp xếp theo trình tự như thế nào?

Làm giùm mình câu m thôi , mình đánh giá 5 sao cho