If parents leave their children on       own, do you think the home is tidy or untidy when they return?

Last Saturday was Mary’s        birthday.

Mickey Mouse is one of many children’s favourite cartoon character. Its pictures are ____, on school bags, desks, and so on.

It’s ____ knowledge that the Nile is the longest river in the world.

We should help those people who are ____.

The matter was much       than everyone had expected.

The woman’s book began       into many languages five years ago.

Look! There are a lot of children        on the playground.

You should try to speak English as       as possible. 

   — Do you know when Mr Wang       back? 

— Sorry, I don’t know. But I’ll tell you as soon as he       back.