Question

—Where is Tom?
— Well, he ______ you ______ here．Otherwise he would come down right now．

A．didn’t know; were	B．hasn’t known; are
C．doesn’t know; are	D．hadn’t known; were

Answer 1

C

考查时态。根据otherwise否则引导与现在事实相反的虚拟语气，故可判断为一般现在时，故选C。