The chemical factory was torn down （ ） protecting the environment.

Advertising is distinguished from other forms of communication （ ） the advertiser pays for the message to be delivered.

It’s high time we _____ strict measures to stop pollution.

There was no point （ ） about the working conditions; the manager would not listen to it any more.

_____， we went swimming in the river.

The tribe had been living in that part of the area for generations until the civil war ______.

I don’t like to _____ a room with a stranger.

Take your time and think the matter over before you _____ a conclusion.

Universities generally （ ） their students from among the high school graduates.

Neither his family nor he （ ） anything about it.

_____ with the developed countries, some African countries are left far behind in terms of people’s living standards.

It is a fact _____ most deaths from lung cancer are caused by smoking.