__ __ __ __ __ __ __ __(买了几张世界地图)by the old man yesterday.

问题描述:

__ __ __ __ __ __ __ __(买了几张世界地图)by the old man yesterday.

Some pieces of the world maps were bought by the old man yesterday .
这个老人昨天买了几张世界地图.