We have a high regard for Mr. Black because he always tries to ________ his principles.

They looked disappointed because they didn’t  ______ the task on time.

Doctors are doing research to find out what happens physically when people ______ smoking.

If you are feeling so tired , perhaps a little sleep would ______.

The plan has to be ________ to meet the real situation.

Do these plans ________ your arrangements?

On weekends the Smiths usually drive to the countryside and ________ the fresh air there.

In face of the challenge for the moment, it’s most important to ______ a good state of health.

A railway station is not a place for a child to be ________ at night.

—We need to _______ a time to have a talk.
—What about tomorrow? I'm too busy now.