单选题— Is Jack on duty today?— It ______ be him, it’s his turn tomorrow.Amustn’tBwon’tCcan’tDneedn’t
单选题
— Is Jack on duty today?— It ______ be him, it’s his turn tomorrow.
A
mustn’t
B
won’t
C
can’t
D
needn’t
参考解析
解析:
考查情态动词辨析。句意:—今天是杰克之日吗?—今天不可能是他,明天才轮到他值日。由“it’s his turn tomorrow” 可知,今天不可能是他。can’t表示不可能的推测。
考查情态动词辨析。句意:—今天是杰克之日吗?—今天不可能是他,明天才轮到他值日。由“it’s his turn tomorrow” 可知,今天不可能是他。can’t表示不可能的推测。
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