摘要:There are over 58, 000 rocky objects in space, about 900 of which could fall down onto earth. A. the; the B. 不填; the C. the; 不填 D. a; the 答案:B 句意:太空中有超过58,000的岩状物体.其中大约900有可能掉到地球上. 解析:考查冠词.第一空in space 是固定短语.不用冠词.第二空名词earth属于独一无二事物的名词.其前必须用定冠词.

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