---It’s very nice of you to help me solve such a big problem.
---_______.
| A．That’s all right. | B．Don’t worry. |
| C．It’s my pleasure. | D．Take it easy. |
Li Feng’s __________ of devotion to others will be remembered forever in China.
| A．achievement | B．service | C．thought | D．spirit |
The two ladies are ___ the same age, but there seems to be ten years ______ them.
| A．at; between | B．about; among | C．at; among | D．of; between |
We can see some apples _______ that tree and a nice bird ______ that tree.
| A．on; in | B．in; on | C．in; in | D．on; on; |
---How is your teacher today?
---________
| A．I’m fine, thank you. | B．She is fine, thanks. |
| C．He is good, thanks. | D．They are fine, thank you. |
---_______ the balls?
---They’re under the chair.
| A．Where’s | B．Where | C．Where are | D．What are |