3.Such a sharp comment is an _____ to a bitter argument.（ ）

A.appendix

B.invitation

C.intention

D.announcement

3.B【解析】appendix“附录”；invitation“邀请，诱因”；intention“意图，目的” announcement“宣告”。句意：如此尖锐的评论会诱发激烈的争论。故选B。

4.Becoming a millionaire has changed his life， but the win has also brought him stress and troubles.Sometimes he wishes he _____ the money.（ ）

A.had never won

B.has never won

C.would never win

D.will never win

4.A【解析】句意：成为百万富翁改变了他的生活，但也给他带来了压力和麻烦。有时他希望自己从未赢过这笔钱。由“wish”可知，本句考查与过去事实相反的虚拟语气，即wish+从句主语+would/could have+过去分词或had+过去分词。故选A。