( ) A. using B. use C. to use D. used——青夏教育精英家教网——

摘要：( ) A. using B. use C. to use D. used

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____ a language in possible situation is the best way to learn it.

A. Use
B. Using
C. Used
D. Useful

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从A、B、C、D四个选项中选出最佳选项：

Do you have trouble ________ the computer?

A．use

B．to use

C．using

D．used

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Did Rose ________ to play games after School?

[　　]

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Did Rose ________ to play games after School?

[　　]

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We ________ the key to open the door．

A．use

B．uses

C．is using

D．is used

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