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单项选择题
A.is
B.are
C.would be
D.will be
单项选择题
A.were
B.is
C.will be
D.has been
单项选择题
A.As
B.Since
C.When
D.If
单项选择题
A.will not be nefit
B.would not be nefit
C.should not be nefit
D.could not be nefit
单项选择题
A.is repaired
B.has been repaired
C.was repaired
D.is being repaired