who 和whoever都可以引导主语从句,只能置于句首,不能用形式主语it代替。它们也都有“谁”的含义, 但能否互相替代呢?请观察下列句子并选择正确选项: (A) ________ leaves the room last ought to turn off the light. A. Anyone B. Who C. Whoever D. No matter who (B) ________ will give us a talk is unknown to us all. A. Whoever B. Who C. Anyone D. No matter who 句(A) 的正确选项为C。
1. “疑问代词 + ever ”可引导两种类型的从句,即让步状语从句和名词性从句(主语从句、宾语从句)。( 1 )引导让步状语从句。此时 whatever / whoever / whichever 分别等于“ no matter + what / who / which ”。例如:Whatever happened, he wou