It has been two and a half years _________ we left our primary school.
| A．because | B．than | C．unless | D．Since |
The hotdog is very nice. Would you like to have a_______?
| A．taste | B．tastes | C．tasty | D．tasting |
The policeman did his best to make the baby_______.
| A．to stop crying | B．stop crying | C．to stop to cry | D．stop to cry |
- Mum, could you buy me a dress like this?
- Certainly, we can buy_______ one than this, but_______ this.
| A．a worse; as good as | B．a better; better than |
| C．a more important; not as good as | D．a cheaper; as good as |
Why not take_______ umbrella with the sign "Made in china"? It is_______ useful one.
| A．an; an | B．an; a | C．a; an | D．a: a |
—Have you mended your shoes, Bob？—Yes, I ____ them twenty minutes ago ．
| A．have mended | B．had mended | C．mended | D．mend |