试题与答案

There are over 58,000 rocky objects in _

题型:选择题

题目:

There are over 58,000 rocky objects in ________ space,about 900 of which could fall down onto ______ earth.[ ]

A.the;the  

B./;the  

C.the;/  

D.a;the

答案:

答案:B

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