People could only take the bus or train to leave the city b____.

问题描述:

People could only take the bus or train to leave the city b____.

People could only take the bus or train to leave the city 【before】.翻译:以前人们只能搭乘汽车或者火车出城.由于could在这里是can的过去时态,说明是表示过去的一种情况.那么会面接个时间副词来表达这种情形发...