问题
选择题
38. Mr. Black ______ home because his briefcase is still on the desk.
A．mustn’t have gone
B．can’t have gone
C．shouldn’t have gone
D．needn’t have gone
答案
答案：B
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38. Mr. Black ______ home because his briefcase is still on the desk.
A．mustn’t have gone
B．can’t have gone
C．shouldn’t have gone
D．needn’t have gone
答案：B