By the time I returned to my hometown, great changes_______ .
A.have taken place
B.took place
C.are taken place
D.had taken place
第1题
A.Even if
B.As if
C.As long as
D.Now that
第2题
A.mustn’t they
B.haven’t they
C.didn’t they
D.weren’t they
第3题
A.to wear
B.should wear
C.must wear
D.wearing
第4题
A.remind
B.repeat
C.recall
D.replace
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