主语从句的题,17._____ you nominate will be elected.AA.Who B.Which
主语从句的题,
17._____ you nominate will be elected.A
A.Who B.Which C.Whomever D.That’s
18._____ book you borrow must be returned within a week.C
A.What B.Which C.Whichever D.That’s
麻烦给个详细的点的解析,比如第一题为什么选A,为什么不选别的.