1.___ twice,the postman refused to deliver our letters unless we chained our dog.

问题描述:

1.___ twice,the postman refused to deliver our letters unless we chained our dog.
A.Being bitten B.Bitten C.Having bitten D.To be bitten
2.() not to miss the flight at 15:20,the manager set out for the airport in a hurry.
A.Reminding B.Reminded C.To remind D.Having reminded
第一题选A,第二题选B,为什么第一个要加being,第二个不加呢?

答案错了,第一题应选B.它只表示一种被动.第二题是经理被提醒不要错过班机,也只是一种被动.