—Look the paint is starting to come off the wall is damp.—Well we’d better have the wall r

问题补充：

—Look，the paint is starting to come off the wall is damp.

—Well，we’d better have the wall repainted some day.

A. when

B. where

C. if

D. once

答案：

A. when

B. where

C. if

D. once

解析：B【命题立意】考查状语从句。

【解题思路】由语境可知，在墙面潮湿的地方，油漆开始脱落。where在句中作地点状语。故选B。