Mothers can be seen leaving supermarkets with trolleys piled high with "junk food". Their

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Mothers can be seen leaving supermarkets with trolleys piled high with "junk food". Their families are eating far more calories than______good for them.

A.is

B.are

C.that is

D.those are

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答案解析

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  • 正确答案:B
    than是关系代词,代替第二个比较句的主语calories,所以谓语应为复数are。也可以把than看成连词,后一个句子主语省略了。D中those替代calories,但缺少起连接作用的which或that。is和thatis在数量上不对。