问题
The teacher are ________ the exam while the students are ________ it. [ ]
A: preparing; preparing
B: preparing; preparing for
C: preparing; prepared for
D: preparing for; prepared for
B: preparing; preparing for
C: preparing; prepared for
D: preparing for; prepared for
正确答案是：
同类题型
Not until ________________________ at the top of my voice __________________ his head.
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From the _________ look of Tom’s mother, we knew that she was quite __________what he had done.
My teacher often tell us how a healthy life.
He was seen ______ out with his friends the day before yesterday.