单项选择题

E-mail, as well as telephones, ______ an important part in daily communication.

A．is playing
B．have played
C．are playing
D．play
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单项选择题
Hardly ______ the railway station when the train started．
A．did I reach
B．had I reached
C．I reached
D．I had reached
单项选择题
They won't buy new clothes because they ______ money to buy a color TV set.
A．save
B．are saving
C．has saved
D．were saving
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