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一道英文题求大神们解答..

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/10 23:11:11
一道英文题求大神们解答..
the students were all surrounding their teacher in the front of the classroom,___ their books in their hands. ( )
a. all off them held
b.all were holding
c.all of whom holding
d.all holding
答案要有说明...
选D.A项,逗号的前后都有主谓,构成了完整的句子结构,错误.(一个句子里面除非连词否则只能有一个主谓)
B项,同理,逗号前后都有were surrounding 和were holding 有两个谓语,错误
C项,which引导的定语从句必须具有一套完整的主谓结构,whom和holding之间少了个were,错误