Only in the past hundred years when electric lightening was developed ___ able to live,work and move about as if night no longer existed.A.has man been B.man has been C.have man been D.man have been解释下has 和have吧.

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 09:44:13
Only in the past hundred years when electric lightening was developed ___ able to live,work and move about as if night no longer existed.A.has man been B.man has been C.have man been D.man have been解释下has 和have吧.

Only in the past hundred years when electric lightening was developed ___ able to live,work and move about as if night no longer existed.A.has man been B.man has been C.have man been D.man have been解释下has 和have吧.
Only in the past hundred years when electric lightening was developed ___ able to live,work and move about as if night no longer existed.
A.has man been B.man has been C.have man been D.man have been
解释下has 和have吧.

Only in the past hundred years when electric lightening was developed ___ able to live,work and move about as if night no longer existed.A.has man been B.man has been C.have man been D.man have been解释下has 和have吧.
选A 这句话是Only从句倒装 谓语结构要用反的 就是把动词提前 而此处的人类man是个统称 我们把它看成是单数名词 所以用has.
understood

应该选a吧。only在前应该是倒装句,把动词提前,所以排除bd。在这里man应该是泛指人类是一个整体的概念所以应该用单数has。