287.　 happen to be 碰巧是

286.　 hang out 闲逛

285.　 hands up 举起手来

284.　 hand out 发放

283.　 half an hour 半小时

282.　 had better do sth. 最好做某事

281.　 go (the) wrong (way) 走错路

　　　　　　　 H

280.　 go traveling 去旅行

279.　 go to the cinema / movie 看电影

278.　 go to sleep 入睡