Dr. Rowan, ______ secretary resigned two weeks ago, has had to do all his own typing.
A. whose B. of whom C. of which D. which
A
【解析】
【详解】考查定语从句。句意:罗文博士的秘书两周前辞职了,他现在只能自己打字。______ secretary resigned two weeks ago是非限制性定语从句,修饰Dr. Rowan,引导词在从句中作定语,表示“Dr. Rowan’s ”,表示“……的” ,应用关系代词whose引导该从句,故选A。