–Your bedroom is dirty. Please tidy _____ up. -Ok, mum. A. it B. its C. them
We had a picnic last term and it was a lot of fun, so let's have_______ one this month.
The hotdog is very nice. Would you like to have a_______?
The policeman did his best to make the baby_______.
- Mum, could you buy me a dress like this? - Certainly, we can buy_______ one than this, but_______ this.
Why not take_______ umbrella with the sign "Made in china"? It is_______ useful one.