摘要： It's hard to say.
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It’s hard to say what kind of person he is. Sometimes he is very nice; at other times he _______ be very cold.
A. must B. will C. shall D. can
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---___ _? ---It’s hard to say. If there were no examinations, I should have a much happier time at school.
A. Are you a student B. Do you like school life
C. Did you have spare time D. Would you like English
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It's hard to say, but I'm sure one of the purposes of university life is to construct a good aim _____.
[ ]
A. by oneself
B. in oneself
C. for oneself
D. of oneself
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B. in oneself
C. for oneself
D. of oneself