问题描述：
-Are you a member of the club?
-____.It's years since I ____ a member of the club.
A.Yes,was B.No,became C.Yes,had been D.No,was
-____.It's years since I ____ a member of the club.
A.Yes,was B.No,became C.Yes,had been D.No,was
问题解答：
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