---Can __________ work out the problem?---__________, I think. It is too hard.
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.
—Have you mended your shoes, Bob?—Yes, I ____ them twenty minutes ago .