【题目】 important it is for kids to think differently!
A.What
B.What a
C.What an
D.How

【题目】—Please_______ the bananas and let's make a fruit salad together.
—Sure.
A.put up
B.cut up
C.look up
D.pick up

—This morning, while we ________ a physics lesson.

A. have had B. were having C. are having D. will have

A. for; for B. for; as C. in; for D. of; because

A. a; a B. an; an C.an; a D. a; an

A. to swim ; health B. swimming; healthy C. to swim ; healthy D. swimming; health

【题目】I will ask my teachers for help _______ I have any problem.
A.when
B.where
C.whose
D.which

【题目】How long does it ______ you to get to the nearest train station?
A.take
B.spend
C.cost
D.pay