Question

 I’d rather you did some social research when you are free, but you _____.

A．didn’t

B．weren’t

C．wouldn’t

D．don’t

Answer 1

D

would rather 后接宾语从句，从句中用一般过去时，表示与现在事实相反的假设或愿望，连词but引出现在的情况，故答案为D项一般现在时。