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单项选择题
A.understand
B.understanding
C.to understand
D.understood
单项选择题
A.took good care of
B.was taken good care
C.was taken good care of
D.was taking good care
单项选择题
A.can't it
B.isn't it
C.hasn't it
D.doesn't it
单项选择题
A.stayed
B.staying
C.stay
D.to stay
单项选择题
A.devoted
B.developed
C.depended
D.delayed
单项选择题
A.the; /
B./; a
C./; the
D.the; the