. They gave us so warm a wele that we were moved very much. It was a sight we .
A. what;have never forgotten
B. which; wre never forgotten
C. as ;will never forget
D. that; would never forget
网友回答
A. what;have never forgotten
B. which; wre never forgotten
C. as ;will never forget
(答案→)D. that; would never forget
解析：考查定语从句。根据主句的was可知，从句用过去时的某种时态。what不能引导定语从句，先行词sight是物，引导词用that或which。故选D。