they are___a train to come here
问题描述:
they are___a train to come here
A.riding.B.riding in
答
A ride这种表示“乘坐,骑”一般用作及物,后面接名词作宾语
they are___a train to come here
A.riding.B.riding in
A ride这种表示“乘坐,骑”一般用作及物,后面接名词作宾语