、I know that either you or your father ______ a copy.A.has B.are to have C.have had D.have

、I know that either you or your father ______ a copy.A.has B.are to have C.have had D.have
、I know that either you or your father ______ a copy.
A.has
B.are to have
C.have had
D.have

、I know that either you or your father ______ a copy.A.has B.are to have C.have had D.have
选A,either...or句型遵从就近原则,谓语与your father的人称保持一致,故用第三人称单数.

have
有一句话：either you or i are wrong. 不是你错了就是我错了。

就近原则，your father是第三人称，谓语用单数，选A

A