题目内容：

用情态动词can,may,must或他们的适当形式填空
1.My father______ride a bike,but he______drive a car.
2.You are ill,Tom.You________see the doctor.
3.Children______play football in the street.
4.If you are not careful,a car_______hit you.
5.-______I come in?-Come in,please
6.A blind man_______see anything.
7.Please ask the policeman.He_______know the way to the hospital.
8.-May I use your telephone?-No,you_______
9.-______you help me?-sure!

优质解答

1.must,may
2.must
3.can
4.may
6.may
7.must
8.can't
9.can