---- Let’s go out to enjoy the fresh air? ---- .
The boy_______ play with his mother's iPad very well when he was only three.
Look! There are lots of people_______ the underground.
Now, everyone, please turn to Page_______ and look at the_______ picture.
- Whose desk is it?- I'm not quite sure. Maybe it is_______.
- Do you get_______ ready for your camping?- No. We still have_______ to do.