1.B has gone to 是去了没回来 has been to 是去了回来了.2.B 楼上的，C怎么会对呢FOR 与可持续性动词连用.3.A4.D 应是被销售，前面有ARE5.A find to do sth ,help :(1).to do sth (2)do sth 1楼的 答案好像很不准哪！~
1. A2. C3. C4. B5. A
