北京東城區(qū)示范校2011屆高三綜合練習(xí)（二）

It is hard to say what kind of person he is. Sometimes he is very friendly; at other times he ___ be very cold.

A. can                      B. must              C. will                       D. shall

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北京東城區(qū)示范校2011屆高三綜合練習(xí)（二）

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北京東城區(qū)示范校2011屆高三綜合練習(xí)（二）

 So involved with computers ____ that the leaders at the summer computer camps often had to force them to break for sports.

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北京東城區(qū)示范校2011屆高三綜合練習(xí)（二）

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北京東城區(qū)示范校2011屆高三綜合練習(xí)（二）

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