—I don’t think it very expensive to buy a family computer here.
—Really? I’ll buy _____ next week.

I have two books. One is for you, ________  is for her.

Your iPad is quite nice. Where did you buy ______? I want to buy ______, too.

Where was Daly __________ Linda was looking for him?

- Doctor, how are the twins going?
- Don't worry. _______of them needs_______.

We carefully compared the result of the first experiment with_______ of the second one.

Is there ________ wrong with your TV?

These postcards are ________.

Miss Wang teaches _______ Maths.

I found _____ very difficult to learn  maths  well.