The Internet is a wonderful discovery,__________ of great si
1个回答

which引导的定语从句,修饰a wonderful discovery,从句若还原成正常语序为I think which of great significance...这个从句的结构如下:I (主语)think(谓语)which(宾语) of great significance...(宾补),明白了吗?I think后面并不是一个从句,而是of great significance...整个作which的补语.其实think后面加is并没有错的,那就成了I think后面跟一个宾语从句了.但是你得按题目意思来.