题目内容
Apples are usually sold by ________ weight, and eggs are sometimes said by ________ dozen.
[ ]
A.the; the
B./;a
C./;the
D.the; a
答案:C
解析:
解析:
|
导解:第一空“靠重量”为笼统概念,不加冠词,第二空有具体计量单位,加定冠词. |
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