1.why did you buy the jacket___you didn't like it?
A.since B.that C.which D./
2.i___i would win the first prize of the competition.
A.wish B.hope C.think D.believe
3.Tom hasn't phoned us for a long time what do you suppose___to him.
A.was happening B.to happen C.has happened D.happened
麻烦帮选一下,再帮分析一下,