He makes it a essential to put some money aside each month.

It’s wonderful to have a month in the faraway village,      all worries and responsibilities.

So far we have done a lot to build a low—carbon economy, but it is ____ideal. We have to work still harder.

This new model of car is so expensive that it is beyond the reach of those with ____ income.

Doctors say that exercise is important for health, but it must be        exercise.

Our English teacher soon got all of us _________ in English soon.

Today, _______ people speak English as their first, second or a foreign language than ever before.

–Is the post office _______ our school?
--No, it’s only about 2 kilometers .You can walk there.

That room is 20 square meters. This room is three times as        .

You should take ____________ measures to improve your working conditions．