英语题目：1.The lady was seen ----- (leave)her room quietly at 7.

1.The lady was seen __to leave___ (leave)her room quietly at 7.00 p.m.yesterday
see sb do sth 但是在被动语态中 do 后面要加to 固定用法
女士被看到在7点安静地离开她的房间
Let's go ang see who _is singing____ (sing) in the next room.
去看看谁在旁边房间唱歌 去看的时候 表示那人正在唱
所以用正在进行时
希望能够帮到楼主