高一英语非谓语题.1.The prize of the game show is 30000 and an all ex

1. The prize of the game show is 30000 and an all expenses （） vacation to China
A. paying B.paid C.to be paid D. being paid
答案选B.
为什么不是D呢?伴随状态啊.一个免支付的旅程.
首先,这时是强调已付的,是被动.其次,过去分词就表态了,而D是强调进行的动作,这里没有这种意思.
2.（）twice,the postman refused to deliver our letters unless we chained our dog
A. being bitten B.Bitten
同问.答案是B.为什么不是A呢. Being bitten.交代了背景.因为邮递员被咬了.
B.Bitten
现在可没被咬,是曾被咬过两次,所以the postman refused .
当前没被咬,所以A进行时不行.