单项选择题
A.No, I'll be busy B.What is the matter? C.I'm sorry I won't be free then D.No, I'll have no time
Why not join us in the game?（）A.OK! Im comingB.No, you ...
单项选择题Why not join us in the game?（）
A.OK! I'm coming B.No, you do the same C.Oh, that's all right D.Don't mention it
Why not（）and do some outdoor activities?A.goes outB.go ...
单项选择题Why not（）and do some outdoor activities?
A.goes out B.go out C.to go out D.going out
Why not（）boating with us in the park?A.to goB.goingC.go...
单项选择题Why not（）boating with us in the park?
A.to go B.going C.go D.goes
