Be careful when you cut vegetables ________ the knife, or you may hurt yourself.
A.with B.at C.on D.for
I am looking after Tom now. He has had a fever ________ 8：00 this morning.
A.at B.since C.for D.till
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
