We learn the sayings “Use it ______ lose it” and “Practice _______ perfect”.

There is much ______ can be done about theaccidents ______ from carelessness.

The English-Chinese dictionary _____I bought many years ago is still of great value.

People less tolerant ofsmoking in public places these days

Some parents are just too protectiveThey want to________their kids from every kind of danger，real or imagined