英语单选求解析

问题描述:

英语单选求解析
We could do nothing but ___ for the concert.___.
A、wait ; to begin
B、wait ; begin
C、waiting ; beginning
D、waited ; began
为什么选A而不选B?

could do nothing but do是固定搭配.
concert还没开始,所以用to do ,表将来