It’s important __________.
Nearly three fourths of work _____finished by students, the rest of work will ___ off.
His father believe in_____ very much, so he makes decisions all by _____.
—Have you ever seen ____ pen? I can’t find my pen anywhere. --Is it ____blue one? It is under the book.
It’s very nice ____ some money to me .
To ____ nature is to help ourselves, or we will be punished.