1The dog _______ the rabbit but could not catch it.
A.ceased
B.chained
C.checked
D.chased
2If your letter is over weight, you must pay for the _______.
A.excess
B.exceed
C.checked
D.chased
3In the class the teacher asked the students to _______ their bad habits.
A.weaken
B.omit
C.overcome
D.overtake
4When you study in the United States, usually you have to buy your own health _______.
A.insurance
B.expense
C.evidence
D.payment
5Chocolate and ice-cream have different _______.
A.favour
B.favourites
C.fever
D.flavours
参考答案：DACAD
责任编辑：小草
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