用情态动词should,shouldn't,have to,had better,had better not,must,must not填空

用情态动词should,shouldn't,have to,had better,had better not,must,must not填空
1.Maybe you?call her up
2.you play in the street.It‘s dangerous.
3.you eat anything in class .It’s not polite
4.you are ill.you see a doctor
5.you go out in bad weather
6.you go skating with me if you're free
7.the teacher is busy at this time .you ask for help
用所给单词的适当形式填空
1.you'd better brush your .(tooth)
2.the doctor tells me (take) medicine three times a day
3.his friend (buy) a gift for him yesterday
4.you'd better (not carry)heavy things
5.(not worry)about that.