The house we bought last month is very nice.A. whereB. that C. whichD. when

问题补充：

The house, we bought last month, is very nice.

A. where

B. that

C. which

D. when

答案：

A. where

B. that

(答案→)C. which

D. when

解析：考查非限制性定语从句，先行词是the house，定语从句缺少宾语，因为非限制性定语从句不能用that引导，选which，句意：我们上个月买的房子很好。选C。