________ it is, the boy never seems to be able to finish it off.

The new system needs to be in operation for five months ________ it can be updated.

We can't wait any longer ________ we'll miss the plane.

House prices vary from place to place and are usually high ________ there are famous schools.

It will be another 50 years ______ our country is expected to reach the level of a medium developed country.

Jerry has promised to keep the secret, so he won't tell anyone ________ asked to.

________ you have to do the job, you should try your best to do it well even though it may be very difficult for you.

Besides, ________ well it is translated, the spirit of the original work is lost.

He never thought that his success came ________ he least wanted it.

Some experts have said that ________ children believe they can succeed, they will never become totally confident of themselves.