英语超好的进、教下我这道题.并说明下选择的原因~The famous band had a concert ______they played most of their original music .A in which B which C when D that

问题描述:

英语超好的进、教下我这道题.并说明下选择的原因~
The famous band had a concert ______they played most of their original music .
A in which B which C when D that