Your great-grandfather seems to live quite ...... for his age.

The virus may remain ...... for the remainder of your life, but it may well awaken one day and cause you a lot of problems.

A group of environmental ...... has started a protest in front of the parliament. They're trying to draw attention to the new ecological problems of the country.

If you really want to find something on the internet, you should search more ...... . Don't just look at two or three websites.

Primary school teachers need to think of a great deal of ...... which might be interesting for children.