——John always thinks of others instead of himself.—— So he does. It is _______ of him to want to help others.

As many as 100 species of fish, some ____ to these waters, may have been affected by the pollution． 

Don’t be so ___________. You should catch any chance if you can.

—What s Rose like?  ---_____.

The new secretary is a quick, _______ worker, and the boss is quite satisfied with her.