---Now the air in our hometown is even than it was before.
---So we must do something to stop it.
| A．better | B．dirty | C．more better | D．worse |
—Do you have lunch at 12：00? — .
| A．Yes, I am | B．No, I can’t |
| C．Yes, I have | D．No, I don’t |
We have dinner in evening.
| A．/ ,the | B．/ , / | C．the, the | D．the, / |
-------Thank you very much. ------_________.
| A．OK | B．You are welcome |
| C．I’m fine | D．Thanks |
—Can you help me, please? — .
| A．Yes , I do | B．Yes, of course |
| C．Fine, thanks | D．Nice to meet you |
------What is this in English? --------_________ a bird.
| A．This is | B．This’s | C．It is | D．They are |