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32．A．work B．works C．working D．worked 【查看更多】

 

題目列表(包括答案和解析)

There are many robots ________ in the factory.

[　　]

A．work
B．works
C．working
D．worked

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We have some problems ________ it out．

[　　]

A．work

B．works

C．working

D．worked

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Dr. Ma used to __________in a hospital.

A．work

B．works

C．worked

D．working

 

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You will be successful if you ________ hard.

[　　]

A．work
B．worked
C．working
D．works

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I'm too tired and I can't keep _______．

A．work                B．worked              C．working               D．works

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