简介： (共52张PPT) 1. —Why did you laugh just now —Ted wanted to tell us very funny story, but he forgot ending himself. A. a; an B. the; the C. the; a D. a; the 讲了一个有趣的故事， 但 忘记了(这个故事的) 结尾 .. .. 2. The boy was seen the piano at 9 last night. A. to play B. play...