Must / Have to / Can

1-Fill in the gaps with a suitable modal verb (must/have to/can).

a)Dan is sick so the doctor told him that he ________ stay in bed.
b)Dan is sick but the doctor told him that he ________ stay in bed; he can get up.
c)You ________ eat so much, and you ________ exercise every day if you want to look and feel better.
d)I ________ study for the test today because I studied yesterday.
e)You ________ use the cell phone while you are driving.
f)We ________ wear a uniform at our school, but we ________ wear a tie. It is necessary.
g)you ________ smoke inside, but you ________ smoke outside.
h)You ________ bring anything to eat because we have plenty of food at my house.
i)You ________ go out at night because it is too dangerous.
j)Kay ________ go to the disco because she is too young.