单项选择题

They (are going) to (have) the servicemen (installed) an electric fan (in) the office tomorrow.

A．are going
B．have
C．installed
D．in
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单项选择题
E-mail (as well) as mobile telephones (are) becoming (more and more) popular (in) daily communication.
A．as well
B．are
C．more and more
D．in
单项选择题
I (heard) that you really (had) a wonderful time (at) John’s birthday party, (hadn’t you)
A．heard
B．had
C．at
D．hadn’t
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