题目内容

1. I ____ the letter when she called.

A. was writing
B. write
C. is writing

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I was busy yesterday. I____ for the exam.

A. prepare
B. was preparing
C. prepares

I didn't know you ______ for me all the time.

A. wait
B. are waiting
C. were waiting

The problem is too difficult. ______ can work it out

A. few students
B. Some students
C. Many students
D. Few students

Although he is rich, he spends _______ on clothes.

A. little
B. few
C. a little
D. a few

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