【题目】The old farmer has two daughters, are kind to him, makes him very happy.
A.neither of whom; whichB.neither of them; who
C.both of them; whoD.both of whom; which
在线课程【答案】D
【解析】
考查定语从句。句意：老农有两个女儿，她们都对他很好，这使他很高兴。此处daughters是先行词，指人，在后面的定语从句中作介词of的宾语，且表示两者都，所以第一空填both of whom；整个句子作先行词，后面的非限制性定语从句用which引导。故选D。