It is very important for us_____ English well.
| A．learn | B．learning |
| C．to learn | D．learned |
The differences_____ these two pictures _____ colour are easy to see.
| A．in, of | B．from, of | C．between, in | D．of ,in |
I don’t have to introduce him to you ________ you know the boy..
| A．until | B．unless | C．since | D．but |
Li Feng’s __________ of devotion to others will be remembered not only in China
but also in some other parts of the world.
| A．achievement | B．service | C．thought | D．spirit |
—Have you found your lost mobile phone?
—No, I haven’t. But I bought ________ yesterday.
| A．it | B．one | C．another | D．other |
— Have you seen _____ empty box?
— Do you mean _____ box you showed to me yesterday? I put it in your schoolbag.
| A．a, the | B．an, a | C．an, the | D．the, a |