The weather in Beijing is cooler than _______ in Guangzhou.
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 .
The old man ______ him______ the money for his study.