'____they find you are afraid,they will attack you.

问题描述:

'____they find you are afraid,they will attack you.
A If ROnce C.Unless D.When
为啥选b,A和D不行吗

答案:B _Once___they find you are afraid,they will attack you.翻译:一旦他们发现你害怕,他们就会袭击你.解析:once在这里作连词,引导时间状语从句,表示“一旦”的意思,if和when放进句子中都不符合逻辑,用once最...