China sent up Shenzhou V manned spacship into space successf

问题描述:

China sent up Shenzhou V manned spacship into space successfully, which shows science and technology
___ rapidly in China.
A. having been developing B. develops
C. is developing D. has developed
为什么不选A啊
1个回答 分类:英语 2014-09-26

问题解答:

我来补答
A 改成has been developing就可以
science and technology 看成整体,用单数谓语动词
再问: 已经有谓语shows了
再答: ... 按照你的说法,就是不填谓语动词了, 但这里ABCd都是谓语动词。 shows是谓语,develop也是,对应的是show后面的宾语从句的谓语动词。
再问: A 是非谓语动词,如果是have been developing 才是谓语动词吧
再答: show后面是一个宾语从句, 从句是需要谓语动词的, 所以改成has been developing 才对啊!
 
 
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