8.By yesterday,the plane ______out of view for more than a month.( )
| A. | is | B. | has been | C. | was | D. | had been |
7.Sometimes parents find ______ hard to communicate with their children.( )
| A. | this | B. | that | C. | it | D. | one |
6.Nowadays scientists are working hard to find out ______ to do with air pollution.( )
| A. | how | B. | why | C. | when | D. | what |
5.Mother came into my study with a cup of milk in one of her hands,and an apple in ______.( )
| A. | the others | B. | other | C. | the other | D. | another |
4.Although I am not good enough at my subjects,I want to be ______ university student in the future.( )
| A. | / | B. | an | C. | the | D. | a |
1.--Hey,Joe,why not eat out to celebrate Mum's birthday?She makes meals for us every day.
--_________( )
--_________( )
| A. | Yes,she will | B. | Good idea | ||
| C. | Let me have a look | D. | We will go |
19.-Thank you for your gift.It's useful for me.
-________( )
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-________( )
| A. | I'm sorry to hear that | B. | I'm glad you like it | ||
| C. | That's all right | D. | Really? |