问题描述：
22.—why does she always ask you for help?
—there is no one else ______,is there?
A.who to turn to B.she can turn to
C.for whom to turn D.for her to turn
为何先B
—there is no one else ______,is there?
A.who to turn to B.she can turn to
C.for whom to turn D.for her to turn
为何先B
问题解答：
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