Peter told us the work would be finished by next month personally I doubt very much.A. w

问题补充：

Peter told us the work would be finished by next month, personally I doubt very much.

A. which

B. when

C. that

D. it

答案：

(答案→)A. which

B. when

C. that

D. it

解析：考察非限制性定语从句。本题中关系代词which指代前面一句话中的the work would be finished by next month,这件事情，并在句中做为动词doubt的宾语。When是关系副词，在句中不能做宾语，it不能引导定语从句。That不能引导非限制性定语从句。故A正确。