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

We are all （ ） at the way her husband treated her.

What time would it be convenient _____us to meet again?

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

Without the sun’s light （ ） the earth’s surface, no life could exist on the earth.

She has （ ） chance to win the election as her opponent is too strong.

Do you mean this is the_____decision you have made after thinking for hours?

All （ ） is to give him a warning.

A new technique （ ）, the output as a whole increased by 20 percent.

Have you seen the lion _____under that big tree?

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

It is the ability to do the job （ ） matters not where you come from or what you are.