题目内容

The whole class ____(be); now listening to the teacher attentively.

A. is
B. are
C. was
D. have

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The news____(be) very exciting.

A. are
B. was
C. is
D. doing

To learn one or two foreign languages____ (be) very important nowadays.

A. are
B. were
C. was
D. is

The last and most difficult lesson____ (be) Lesson 14.

A. are
B. done
C. is
D. were

I, who .____ your friend, will try my best to help you.

A. are
B. is
C. was
D. am

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