Half of the work ______ by now. A. has finished B. has been finishe
题型：不详难度：来源：
Half of the work ______ by now.
A. has finished B. has been finished C. have been finished |
答案
| B |
解析
| 考查动词的被动语态。 句意：一半的工作已经被完成。可知要用被动语态结构，work是不可数名词，所以用单数has been finished，故选B。 |
举一反三
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