While previewing his lessons the little boy will make a question mark there is a questio

问题补充：

While previewing his lessons, the little boy will make a question mark there is a question.

A. where

B. when

C. because

D. which

答案：

(答案→)A. where

B. when

C. because

D. which

解析：考查地点状语从句：句意：当预习功课的时候，小男孩在有问题的地方划个问号。Where引导地点状语从句相当于at the place where“在…地方”，选A。