单项选择题
Not always（）they want (to)
A.people can do what B.can people do what C.people can not do what D.can‘t people do what
单项选择题 --We want to sit at the table near the window. -- I‘m sorry, but（）already.
单项选择题 The boy（）to school already.
单项选择题 It's not safe（）in the street.
