U102You _________ be 18 years old to apply for a driver license.
A. would
B. must
C. might
D. can't
E. should
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U102He __________ be in the dormitory now, I met him in the library just a moment ago.
A. would
B. must
C. might
D. can't
E. should
U102We __________ try to speak English whenever and wherever we can; otherwise, we ________ have little chance to practice our English.
A. would
B. must
C. might
D. can't
E. should
U102Henry _________ have arrived in Shanghai by now, for the plane took off three hours ago.
A. would
B. must
C. might
D. can't
E. should
U102The expedition ___________ the top of the mountain by now.
A. may reach
B. might have reached
C. should have reached
D. will have reached