英语试题2Glaciersbegintoform------moresnowfallsduringthewinterthanmeltsandevaporatesinthesummer.AiswhenBwhenthereareCwhenDwhendoes为什么选C不是B

问题：英语试题2Glaciersbegintoform------moresnowfallsduringthewinterthanmeltsandevaporatesinthesummer.AiswhenBwhenthereareCwhenDwhendoes为什么选C不是B

答案：↓↓↓

罗振英的回答：

网友采纳　　when引导时间状语从句.　　若选B,即构词句子therearemoresnowfallsduringthewinterthanmeltsandevaporatesinthesummer.此句存在语法错误,因为后面出现了谓语动词falls和evaporates.故不能用therebe型.　　故选C.