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填空題

In China,it is quite (nature)（） for people to go back home for the Spring Festival.

答案： natural

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He will behave(crazy)（）if he drinks too much.

答案： crazily

單項(xiàng)選擇題

The weakening housing market continued to take its（）on the industry.

A.toll
B.profit
C.insurance
D.security