This article deals with the natural phenomena which___ most interesting to people.A .is B.are C.to be D.being为什么选C……求解释!

This article deals with the natural phenomena which___ most interesting to people.A .is B.are C.to be D.being为什么选C……求解释!
This article deals with the natural phenomena which___ most interesting to people.
A .is B.are C.to be D.being
为什么选C……求解释!

This article deals with the natural phenomena which___ most interesting to people.A .is B.are C.to be D.being为什么选C……求解释!
不能选 “C.to be”呀,应选 “B.are”才对呀.
关系代词所引导的从句中,关系代词一定要作从句中的主语、宾语、表语或介词宾语的某一成份.
即关系代词在从句中或作主语或作宾语或作表语或作介词的宾语.
而关系代词是指代先行词的.
在此句中,phenomena是复数,所以which也指的是复数,而which在从句中做主语,由此可知要选are作从句的系动词,不能用非谓语动词to be 的形式,是吧?