Acarenginecannotrunsmoothlywit

A car engine cannot run smoothly without motor oil.____ our body cannot function efficiently without vitamins.

A． fortunately

B． Gradually

C． Similarly

D． Confidently

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. — Do you think there is anything ____ interest in the exhibition?
— Yes, I think some of the pictures are ____.

A．for; of help

B．of; of great help

C．in; of helpful

D．at; helpful

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A．take the charge of

B．takes charge of

C．in charge of

D．in the charge of

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A．went

B．left

C．ran

D．dropped

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. It looks as if they are going to ____ us , dollars for the concert hall.

A．want

B．cost

C．demand

D．Charge

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. — Is there a ____ to the time that I can stay here?
— Yes, you must leave here before he comes back.

A．number

B．length

C．limit

D．Matter

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