The officer kept silent,so I couldn’t figure out _____ he agreed or not.

问题描述:

The officer kept silent,so I couldn’t figure out _____ he agreed or not.
A:if
B:whether
C:either
D:neither

B wherher.(陈述语句)+ or not 是固定形式,表是否的意思
if也是是否的意思,但不可以和 or not连用
C D 是绝对错的