1he is clever and can work out these difficult problems in such a short time（同义句转换）
---------him---------out these difficult problens in such a short time
2you should wear the raincoat in rainy weather (改为否定句)
you --------the raincoat in rainy weather
人气：108 ℃ 时间：2019-09-29 03:59:20
解答
保证准确!
= （It's clever of) him (to work) out these difficult problems in such a short time.
shouldn't wear
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