Question

He stayed there for quite a long time, during ________ time he learned much spoken English. ...

He stayed there for quite a long time, during ________ time he learned much spoken English. A．that B．this C．which D．same

Answer 1

C

因前后均的句子，必须要选连词，排除B和D；又因在介词后不能用that来引导定语从句，所以选C。during which time在那段时间里。