The passage is mainly about the way to ______.
A. make liquid fertilizer
B. make a rooftop box
C. cover the roof with grass
D. build a rooftop garden
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[听力题] Directions: This section is to test your ability to give proper responses. There are 4 recorded questions in it. After each question, there is a pause. The questions will be spoken two times. When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D.
A. Yes, I did.
B. Yes, I am.
C. No, I don't.
D. That's right.
choose the right answer.
A. Yes, we should.
B. In the bin.
C. You are right.
D. My pleasure.
choose the right answer.
A. That's OK.
B. Not so good.
C. That's all right.
D. Yes, it is.
choose the right answer.
A. Yes, I do.
B. It's interesting.
C. We do not drive cars that day.
D. That's OK.