—IhavetelephonedhimtwicebutIco

—I have telephoned him twice but I couldn’t get through.
—I think that the line _____ be being worked on today.

A．should

B．might

C．need

D．would

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相关试题

They arrived at the farmhouse, in front of which________.
A is sitting a boy
B. sat a boy
C. a boy sat
D. a boy is sitting

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All possible means ________been taken to prevent the river________．

A．have;polluting

B．has; polluted

C．has; from polluted

D．have;being polluted

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The government is considering the environment-friendly plan which some scientists would like to see________soon．

A．to be carried out

B．be carried out

C．carrying out

D．carried out

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________late, but also he forgot his books.

A．Not only he turned up

B．Not only he turned out

C．Not only did he turn out

D．Not only did he turn up

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We'd like to do something for you________what you've done for us.

A．in exchange

B．in turn

C．in return for

D．in terms of

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