—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

— 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

—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

—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

—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