摘要： 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
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Polar bears live mostly on_____ sea ice, which they use as ____platform for hunting seals.
A. a;a B.a;the C./;a D.the;/
查看习题详情和答案>>Polar bears live mostly on_____ sea ice, which they use as ____platform for hunting seals.
A. a;a B.a;the C./;a D.the;/
查看习题详情和答案>>Polar bears live mostly on_____ sea ice, which they use as ____platform for hunting seals.
A. a;a B.a;the C./;a D.the;/
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