18. Don’t worry! He ____ no attempt toleave. He will stay here to help you.

ericans would prefer to keep their problems themselves,and solve their problems ______ themselves.

Our government ______ all people to save energy and fight against pollution.

_____ is known to us all is that to work hard to achieve a goal is more important than only to have a goal

Haier Company produced a new type ofrefrigerator of high quality and pretty appearance; its only ___is that ittakes up too much room