I’ve finished ( ) thing she gave me.(A.every B.each of )选 B 为什么呢

问题描述:

I’ve finished ( ) thing she gave me.(A.every B.each of )选 B 为什么呢

答案B错,each of后面要加复数名词,此处thing用单数,故B错.
答案可以,不过一般都说everything.