1. She shouldn't let the children go out at night.

=> The children shouldn't...

2. "Why don't we take a taxi to get there?" He said.

=> He suggested...

3. They will have no change the date of the meeting again.

=> The date of...

4. You must make a decision as soon as possible.

=> A decision...

5. Although it rained, we went to school.

=> Inspite...

6. The weather is lovely. We spent the whole day in the garden.

=> It was such...

7. "Please turn down the radio for me" My father said.

=> My father asked...

8. The film was so boring that I turned off the TV set and went to bed.

=> It was such...

9. He is a bad driver.

=> He...

10. It was overeating that caused his heart attack.

=> If...

11. "Try your best study" My father said to me.

=> My father encouraged...

12. "Why don't you go to the party with me?"

=> He suggested me...

13. I can't speak Russian.

=> I wish...

14. "Stop your car" The police asked me.

=> The police ordered me...

15. The children didn't want to go to bed early because the TV programme was very interesting.

=> The TV programme was so...

16. She doesn't watch TV at night.

=> TV...

17. "Do you sometimes play chess with your father, Minh?" They asked.

=> They asked...

18. "You had better leave this party early?" He asked.

=> He advised me...

1. I haven't been able to see them for over a year.

=> It is...

2. "Where do your parents work?" They asked me.

=> They asked me...

3. The journey took five hours.

=> It...

4. They haven't met her since you appeared.

=> She...

5. Maryam can't find a good book.

=> Maryam wishes...

6. Time is one of the most popular magazines and is widely read by both teenagers and adults.

=> Both teenagers...

7. Keeping in touch with the media is very important and neccessary.

=> It's...

8. "Don't forget to close the window before going to bed" They said.

=> They reminded...

9. Inspite of all our efforts, we failed.

=> Although...

10. The streets are very crowded. Traffic jams usually happen.

=> The streets are so...

11. I think it won't be bright borrow.

=> I wish...

12. I spent two hours doing my homework.

=> It took...

13. "I don't agree with you on the matter" He said

=> He refused...

14. In the snowy weather, we don't go to school.

=> If...

15. You must do this exercise carefully.

=> This exercise...

16. Ba went out without saying a word.

=> Ba went out...

17. I'm not at home right now.

=> I wish...

18. "Why do you study English?" They asked me.

=> They asked...

19. Mr. Brown doesn't have a car.

=> Mr. Brown wishes...

20. Nobody has seen him since 2000.

=> He...

Bài 1: Với giá trị nào của x thì các biểu thức sau có nghĩa?

a) \(\sqrt{ }\)-3x + 2

b) \(\sqrt{ }\)9x² - 6x + 1

c) \(\sqrt{ }\)x² - x + 1

d) \(\sqrt{ }\)4/2x - 3

e) \(\sqrt{ }\)x² + 2x + 3

g) 5/\(\sqrt{ }\)1 - \(\sqrt{ }\)x - 1

Bài 2: Với giá trị nào của x thì các biểu thức sau có nghĩa?

a) \(\sqrt{ }\)2x - 1/ 2 - x

b) \(\sqrt{ }\)x - 3/ \(\sqrt{ }\)5 - x

c) \(\sqrt{ }\)x² - 4

d) \(\sqrt{ }\)x - 1/ \(\sqrt{ }\)x + 1

Đặt tính và tính đúng:

630 : 9

Tìm tập xác định D của hàm số y = x 2017 .

A.  D = - ∞ ; 0

B.  D = 0 ; ∞

C.  D   =   R

D.  D = 0 ; + ∞

Tính:

714g - 54g =

Trang ____ me 20 minutes ago.

A. phones    

B. phoned

C. had phoned    

D. has phoning

We ____ 2 hours reading Physics books yesterday.

A. spent    

B. spend

C. was spent     

D. had spend

There are a lot of ________ after the storm.

A. homeless people     

B. elderly people

C. nursing home     

D. None are correct.

Cho hình nón chứa bốn mặt cầu cùng có bán kính là r, trong đó ba mặt tiếp xúc với đáy, tiếp xúc lẫn nhau và tiếp xúc với mặt xung quanh của hình nón. Mặt cầu thứ tư tiếp xúc với ba mặt cầu kia và tiếp xúc với mặt xung quanh của hình nón. Tính chiều cao của hình nón.

A.  r 1 + 3 + 2 3 3

B.  r 2 + 3 + 2 6 3

C.  r 1 + 3 + 2 6 3

D.  r 1 + 6 + 2 6 3