Directions: In this section you will hear ten sentences once. Listen to the sentences carefully and choose the right answe[音频]r to each of the sentences.1（21）.
A. It’s too early to tell.
B. Not at the moment.
C. It’s a good plan.
D. I’m sorry. I’ve got to go.
2（22）.
A. It sure does.
B. Surely. Why not?
C. They really look alike.
D. It’s up to you.
3（23）
A. It’s alright.
B. Don’t worry.
C. It depends.
D. What for?
4（24）
A. It doesn’t happen very often.
B. It was all my fault.
C. Who’s to blame?
D. I don’t blame you.
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