The scouts caught some fish in the river and (a)   them on the campfire for their dinner.

Newspapers, radio, movies, television and magazines are mass (a)   .

This (a)   provides useful information for dealing with conflicts.

Though deeply hurt, the man still put on a (a)   smile, trying to tell others that he was alright.

The factory (a)   shoes for Nike, but they don’t pay their workers very well.

My homeroom teacher always offers us (a)   advice when we encounter difficulties. We think his advice is very useful.

Scientists have discovered serious damage in the ozone (a)   above the Antarctic.

Joseph is not good at dancing. He looks quite (a)   because his movements are very stiff.

Houses built with (a)   and steel bars are safer and more secure to live in than those wooden structures.