用所给词的适当形式填空。
1. Please ask the children_________( not play) in the street.
2. Let's ________ (ride) our bikes to the countwside this weekend.
3. We ________(not have) our sports meeting if the weather________(not
be) fine.
4. Half the students in my class________( be) interested in watching
cartoons.
5. What________ (happen)if they don't come here on time this afternoon?
1.not to play
2.ride
3.won't have; isn't
4.are
5 . will happen