thu gọn biểu thức sau: a = cos(7pi - x) + 3sin((3pi)/2 + x) - cos(pi/2 - x) - sin x

Bối cảnh không gian thời gian của tác phẩm Tinh thần thể dục-Nguyễn Công Hoan

He _________ this house in 2012.

A.build

B.built

C.was building

D.have built

 Một đoạn mạch đơn của phân tử ADN có trình tự sắp xếp như sau:– A – G – T – X – X – G – A – T – G – A – X – T – X – A – G –Hãy viết trình tự sắp xếp các nuclêôtit của đoạn mạch đơn bổ sung với nó.

1. The director offered him a good job, but he refused. (turn)

⟹ The director ………………………………………………………..

2. I don’t remember exactly when my parents started this workshop. (set up)

⟹ ………………………………………………………..

3. The flight to Moscow lasted three and half hours.

⟹It took ………………………………………………………..

4. The traffic problems of the city had been solved. The Prime Minister was pleased. (adj+ that clause)

⟹The Prime Minister was………………………………………………………..

5. Despite the bad weather, we went out for a picnic. (although)

 ⟹ We . ………………………………………………………..

5. “How many students are there in your class?”

⟹The teacher asked me

5. People said that he was abroad.

He…………………………………………………………..

1. “ What places in Viet Nam have you visited, Maryam?” Tuan asked.

Tuan ____________________________________________________________

2. When should I begin the lesson?” the teacher said.

The teacher didn’t know_____________________________________________

3. She was not sure who she should contact.

She was not sure ___________________________________________________

4. “ I will present you a gift on your birthday.” said Linh.

      Linh ____________________________________________________________

5. “Where can I find more information about this?” he asked

He didn’t know_____________________________________________________

6. “Don’t go to bed too late,” my mother said to me.
     - My mother_______________________________________________________

7. “Should I go with you now, Dad?” said Daisy.

    - Daisy____________________________________________________________

8. Children often played outdoor games in the past. (Use: used to)

   - _________________________________________________________________

9. As a boy, I often flew a kite.

   – I used  _____________________________________________________________

10._________________________________________if you want to pass the final exam.

11. Study harder or you’ll fail the exam.

   - If  _________________________________________________________________

12. I don’t understand how to begin the game on the computer.

  - I wish _________________________________________________________________

13. They’ve changed the date of the meeting.
    - The date of the meeting _______________________________________________

14. I took a nap after I had lunch.

  - I had lunch ___________________________________________________________

15. We hurried to school so as not to be late.

 - We hurried to school so that ________________________________________________

16. They missed the school bus, so they came to the bus stop late.

- Since __________________________________________________________________