英语选择题There was nothing they could do-

问题描述:

英语选择题There was nothing they could do-
There was nothing they could do-
Abut wait Bexcept waiting Conly to wait Dunless they waited
为什么选A不选B

记住:nothing ...but 句型,有DO 没TO, 前有有do 所以BUT 后不用TO
加油!不明白再问!