Question

Is this factory ___________?

A．the one your father works in	B．where your father works
C．which your father works	D．your father works in

Answer 1

A

考查定语从句。将句子还原为陈述句可知句中缺少表语，故用代词the one作表语，并作先行词，在定语从句中作介词in的宾语，故选A。