题目内容
— It's eight o'clock already. Jack _____ be here by now.
— Oh, he told me that he was going to see his dentist and wouldn't be back until ten.
— Oh, he told me that he was going to see his dentist and wouldn't be back until ten.
[ ]
A. must
B. can
C. should
D. need
B. can
C. should
D. need
C
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