Theyputforwardalotofplansatthem

They put forward a lot of plans at the meeting, but none of _______ were carried out in their workA.whichB.themC.whatD.that

参考答案：
B解析考查代词。本句中them指代前文a lot of plans，本题下文前有连词but，不是定语从句。故选B。