My parents often go to the movies ________ Saturday evenings. It's one of their habits.
A.on B.in C.for D.at
Her birthday is ________ spring. This is the most beautiful season of a year.
A.in B.at C.on D.from
This pair of glasses ________ be Linda's. She never wears glasses.
A.can't B.can C.mustn't D.must
You'd better take an umbrella when you go out, because it ________ rain.
A.must B.might C.can D.need
Nowadays, some robots are very humanlike. They________ walk and dance.
A.can B.must C.may D.should
For the patients' health, everyone in the hospital ________ smoke.
A.can't B.can C.mustn't D.must
