1. There was no bridge over the river between the village and the school then, so the children there ________ go to school by ropeway(索道).
A. can B. could C. have to D. had to
【考点】
情态动词; 动词辨析; 一般过去时;
【答案】

您现在未登录,无法查看试题答案与解析。 登录
单选题 普通