Our visitors decided to stay in our city for _____ two days as they wanted to have a look around.

She tried to explain this program by_____of sign language.

There is a warning at the bottom of the form that applicants are requested to hand in their forms _____ person.

“You are too self-centered.It’s high time you （ ） that you are not the most important person in the world,” Edgar said to his boss angrily.

All of them are （ ） at Lana’s achievement.

The number of deaths from heart disease will be reduced greatly if people _____ to eat more fruit and vegetables.

All （ ） is to give him a warning.

Seeing her father come back, （ ）.

We are at your service. Don’t （ ） to turn to us if you have any problems.

—I’m afraid we must go now if we don’t want to get caught in the traffic jam. —OK. ______.

Today, household chores have been made much easier by electrical （ ）.

They spent all their money and made no （ ） for the future.