题目
A.can’t have been
B.shouldn’t have been
C.mustn’t have been
D.needn’t have been
第1题
The room is in a terrible dirty surroundings; it ______ cleaned.
A.can' t have been
B.shouldn' t have been
C.mustn't have been
D.wouldn' t have been
第2题
Today his room is ______ as usual.
A.so dirty
B.as dirty
C.more dirty
第3题
Today his room is ______ as usual.
A.so dirty
B.as dirty
C.more dirty
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