The manager or his assistant ( ) planning to go填哪个被动词啊?were?are?was?be为什么不可以选BE啊单数不可以选BE吗，BE是复数用的吗

The manager or his assistant ( ) planning to go填哪个被动词啊?were?are?was?be为什么不可以选BE啊单数不可以选BE吗，BE是复数用的吗
The manager or his assistant ( ) planning to go填哪个被动词啊?were?are?was?be
为什么不可以选BE啊
单数不可以选BE吗，BE是复数用的吗

The manager or his assistant ( ) planning to go填哪个被动词啊?were?are?was?be为什么不可以选BE啊单数不可以选BE吗，BE是复数用的吗
因为OR 两者之一 是单数的意思

was