2. 外语
  3. ______ substantial layoffs, costs were reduced.

______ substantial layoffs, costs were reduced.

admin2011-01-13  74
问题 ______ substantial layoffs, costs were reduced.
选项 A、When
B、Because of
C、Although
D、Since
答案B
解析 Because of indicates a cause-and- effect relationship and can be followed by a noun phrase. Choice (A) must be followed by a subject and verb. Choice (C) indicates an unexpected result and must be followed by a subject and verb. Choice (D) must be followed by a subject and verb when indicating a cause-and-effect relationship.  
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