A. The invention of the fridge. B. The pollution caused by fridges. C. The widespread need for fridges. D. The days without t

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问题 A. The invention of the fridge.
B. The pollution caused by fridges.
C. The widespread need for fridges.
D. The days without the fridge.
E. The waste of energy caused by fridges.
F. The fridge’s contribution to commerce.
A. milk, meat, vegetables, etc. were delivered
B. it has promoted the sales of many kinds of commodities
C. foods can be preserved
D. most kids like iced soft drinks
E. every housewife needs food
F the fridge produced when it is working

选项

答案A

解析 空格所在句子的基本时态(主句时态)是一般过去时,所以空格所在的结构(从句结构)应该是过去时态的一种,所以只有A,D,F可能是答案。从搭配语意“在冰箱开始使用之前,因为牛奶、肉、蔬菜等食物都会送货上门,所以人们仍然可能获得新鲜的食物。”上看,A最合适。
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