—Will you be _____ this afternoon, John?—It depends. I’m afraid I’ll be called in by my manager.

I put the medicine on the top of the desk to make sure it would not be _____ to my son.

The ___ look on the girl’s face suggested that she ___ such bad news.

Nowedays, there is a____ increase in children’s creativity,for they are greatly encouraged to develop their talents.

It is immediately obvious that water is to be _______ to the development of life.