America's car industry will continue to break downsome progress is made to close the gap.A

发布时间：2020-08-16 09:02:40

America's car industry will continue to break down     some progress is made to close the  gap.  
A. since
B. unless
C. because
D. though

网友回答

A. since
(答案→)B. unless
C. because
D. though
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