Every means tried, yet no result encouraging up to now.
A. have been ...is
B. has been...has been
C. have ...has been
D. has...is
Every means tried, yet no result encouraging up to now.A. have been ...is B. has been...h
答案:2 悬赏:10 手机版
解决时间 2021-12-19 22:15
- 提问者网友：且恨且铭记
- 2021-12-19 00:35
最佳答案
- 五星知识达人网友：你可爱的野爹
- 2021-12-19 01:25
A. have been ...is (答案→)B. has been...has beenC. have ...has been D. has...is解析：考查时态及主谓一致。句意：每一种方法都试过了，到目前为止还没有令人鼓舞的结果。结合语境可知前文描述的是现在已经完成的动作，故用现在完成时态。主语为抽象名词不可数，故谓语动词用单数。下文根据时间状语可知也是现在完成时态，主语result同样是抽象名词，故谓语动词也用单数，选B。
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- 1楼网友：神鬼未生
- 2021-12-19 01:50
你的回答很对
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