You may use the room as you like ____you clean it up afterwards [ ]

It is difficult for a teacher togive attention tochildren in a large classWe should reform the situation in order to meet each child’s needs

________ worries me the way he keeps changing hismind.[ ]

Most companies’ marketing effort is focused on getting customers, with little attention _______ to keeping them.

_______ do you think of our new English teacher—-Oh, very great. She is so kind to all of us.