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 单项选择。(每题1分，共15分)

（  ）1. I’m not sure _____ he will come back home tomorrow or not.

A. when                B. what                 C. whether                   D. where

（  ）2. He did his homework _____ watching TV.

A. instead              B. instead of          C. rather than                D. but not

（  ）3. You’d better _____ our computer teacher _____ help.

A. ask; for            B. want; for           C. tell; about                 D. let; to

（  ）4. Are you sure the Internet is good _____ us?

A. for                   B. at                      C. to                                   D. with

（  ）5. What do you often do _____ the Internet?

A. in                     B. through             C. on                         D. with

（  ）6. I _____ 10 minutes drawing a dog.

A. spent                B. cost                  C. took                         D. paid

（  ）7. Robots can do _____ jobs instead of humans.

A. bored               B. boring               C. interested                 D. interest

（  ）8. Let me tell you _____ to use it.

A. what                 B. how                  C. which                      D. whether

（  ）9. Maria,  please  pay  attention _____ what  the  teacher says in class.

A. to                     B. at                      C. for                           D. about

（  ）10. I don’t think TV sets can _____ cinemas.

A. take the place of                                 B. take place

C. instead of                                      D. take place of

（  ）11. _____ is very important for us _____ English well.

A. That; to learn                                B. It; to learn

C. It; learning                                    D. What; learning

（  ）12. I need some _____.

A. book                                            B. robot

C. backpack                                     D. information

（  ）13. _____ UFO landed (着陆) outside the shop while she was buying _____ umbrella.

A. An; an             B. An; a                 C. A; an                               D. A; a

（  ）14. We shouldn’t spend _____ it .

A. much too time for                         B. too much time in      

C. too much time on                          D. much too time on

（  ）15. What _____ he _____ when the UFO arrived ?

A. is; doing                                      B. was; doing

C. were; doing                                 D. was; did

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