Viết lại câu sử dụng BECAUSE hoặc BECAUSE OF
1.Hoa could buy that house because she was rich.
=>Hoa
2.Because the rain was so heavy,I couldn't go to school.
=>Because of
3.His father asked him to stay at home because he was sick.
=>His father
4.Because there was an accident,I was late.
=>Because of
5.She failed the University entrance exam because her grades were bad.
=>She
6.Because of the cheap price,my wife insists on buying the TV.
=>Because
7.Because I studied hard,I passed the exam.
=>Because of
8.Nam can learn very fast because he is an intelligent student.
=>Nam
9.Because it was raining heavily,we didn't go to school.
=>Because of

Choose the most suitable words or phrases to fill the blanks.
6. The children are old enough to look after ______. 

A. them

B. their

C. themself

D. themselves

7. We ought ______ the wardrobe in the corner opposite the bed.  

A. put

B. push

C. to put

D. to push

8. You should go to the ______ to buy some fish and vegetables.  

A. market

B. post office

C. kitchen

D. theater

9. I ______ work every day from 8.30 to 5.30.   

A. ought to

B. must

C. should

D. have to

10. The calendar is ______ the clock, ______ the picture and the lamp.  

A. on/ next to

B. under/ between

C. behind/ between

D. above/ on

11. She worked hard ______ she could pass the final exams.  

A. so that

B. in order to

C. as result

D. so as to

12. Let's paint the house ______. It will be much cheaper.  

A. yourself

B. herself

C. ourselves

D. themselves

13. These shoes are very well-made. They ______ a long time.  

A. last

B. will last

C. must last

D. are going to last

14. It is dangerous to let children ______ in the kitchen.  

A. play

B. to play

C. playing

D. to playing

15. We've got a problem. I hope you can help ______.  

A. yourself

B. myself

D. ourselves

D. us