大学英语三Unit3课本答案(3)

2. 1）narrowed down 2) looked back on 3) cut off 4) fit into 5) wear(the other)down 6) lies in

7) put up 8) stand for

3. 1) …which is likely to make people vulnerable to asthma has been found by researchers at ….in Oxford.

2)…with mirrored doors had to be built in so as to make their small bedroom look larger.

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