单项选择题
W: This plane should have taken off half an hour ago. M: I’m sorry for the delay. We’ll be taking off shortly.
A.At a hotel. B.At the airport. C.In the bookstor
A.He watched a play. B.He did nothing. C.He stayed at hom
A.They are having a rest. B.They want to keep something. C.They are climbing a hill.