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

Just as the soil is part of the earth, （ ） the atmosphere.

She （ ） to book a seat on the next flight.

What （ ） would happen if he told mom and dad what we had done?

Take your time and think the matter over before you _____ a conclusion.

Although it’s tough finding a job these days, Henry got a （ ） in a famous company.

Only when （ ） in the afternoon （ ） able to leave.

He （ ） yesterday morning, and would stay for three days.

The two parties haven’t reached any agreement, but decided to set another date for （ ） talks.

Language belongs to each member of the society, to the cleaner（ ） to the professor.

Solar energy is a new kind of energy _____ that we can use to replace the traditional energy.

I wrote it down_____I should forget it.