Polar bears live mostly on sea ice, which they use as platform for hunting seals.A. a; a

发布时间:2020-08-17 09:40:43

Polar bears live mostly on      sea ice, which they use as      platform for hunting seals.
A. a; a
B. a; the
C. 不填; a
D. the; 不填

网友回答

A. a; a
B. a; the
(答案→)C. 不填; a
D. the; 不填
解析:
第一空后的sea ice为表泛指的物质名词,故其前不用冠词; 第二空后的为表泛指的单数可数名词,故其前用不定冠词。
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