38．A．improve B．improving C．improved D．to improve 【查看更多】

 

題目列表(包括答案和解析)

Your pronunciation needs ________.

[　　]

A．improve
B．improving
C．to improve
D．improved

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Students should do everything they can ________ their study.

A．improve           B．to improve             C．improving               D．improved

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I'll work hard ________ my English.

[　　]

A．improve

B．to improve

C．improving

D．improved

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—Why did you plant so many trees?
— ______ the environment.

A．Improve
B．To Improve
C．Improved
D．Improving

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—Why did you plant so many trees?

— ______ the environment.

A．Improve

B．To Improve

C．Improved

D．Improving

 

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