that 前面有逗号 ACT,a company in W,that is also investing the promising stem cell strategy called therapeutic cloning.这个句子中that做什么成分,为什么that前边有逗号.

that 前面有逗号 ACT,a company in W,that is also investing the promising stem cell strategy called therapeutic cloning.这个句子中that做什么成分,为什么that前边有逗号. That引导的从句并且前面有逗号.这叫什么用法 顿号前面能有逗号吗 but在句中时前面有逗号吗? “以及”前面可以有逗号吗? actually放句尾前面有逗号吗 “以及”前面可以有逗号吗? 什么单词 前面后面都有逗号? 为什么and前面有逗号,逗号后面的句子的主语仍然是逗号前面句子的主语? 定语从句where前可以有逗号吗我知道which可以有的,但是这句话主谓宾都有了按理来说应该是where,但前面有逗号()no doubt that high school is a battleground,()everyone seems to be going through awkward physical changes but 和and什么时候前面有逗号,什么时候没有? for表示因为时前面是否一定有逗号 用两个一切造句第一个一切前面有逗号 【英语】Was it in the square,where there were lots of people,_______the accident took place?A.whenB.whoC.whichD.that为什么选D不选C?这不是非限定性的定于从句吗?前面都有逗号,怎么还能用that? If it were not for his wife's money he'd never be a director 这个he前面是不是省略了that为什么省略为什么he前面没有逗号！ 连词前面的逗号问题 while so that①She is a girl,while I am a boy.②She is a girl while I am a boy.并列连词 while前面可以不加逗号么?还有比如：① people have to spend a great number of time and energy on acquiring advanced therefore在句子中的成分是什么?为什么前面有逗号后面也有逗号像however一样起什么作用 therefore在句子中的成分是什么?为什么前面有逗号后面也有逗号像however一样