1. Mind your own ___ .

5. The old man has dark glasses on to ___ his eyes from the sun.

N. affair, business, matter, thing

4. Put on a thicker coat to ___ yourself from the cold.

3. Soldiers ___ the research center with guns every day.

2. Here we are well ___ against a surprise attack.

1. We shall ___ our island, whatever the cost may be.

5. Because of modern ___, we have a much higher standard of living.

　 M. defend, protect, guard

4. They used lots of ___ to get their prisoners to cooperate.

3. Engineering is studied at a school of ___.

2. These people have reached only a very low level of ____.