单项选择题

For there successful communication, all present must be attentive and get involved in the discussion.

A．is
B．to be
C．will be
D．being
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单项选择题
I must go now. , if you want that book, I'l bring it next time.
A．Specifically
B．Simultaneously
C．Incidentally
D． Undoubtedly
单项选择题
The project by the end of 2007, will expand the city蒺s mobile phone network to cover 10,000,000 users.
A． accomplished
B．being accomplished
C．having been accomplished
D．to be accomplished
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