---How often does the boy play sports?
---__________
| A．Once a week | B．Four hours | C．In an hour | D．At 7pm |
We must protect water from being _________, because it’s the source of life.
| A．polluted | B．provided |
| C．finished | D．punished |
My father ______ in China for 20 years already. He thinks his job is great.
| A．will work | B．works |
| C．has worked | D．is working |
______ good advice the teacher gave me!
| A．How | B．What | C．What a | D．How a |
--- Everyone is born special, because we are ______ others. So just be yourself.
| A．proud of | B．different from |
| C．good with | D．interested in |
I don’t think dropping litter is allowed in Yellow River Park, ________?
| A．do I | B．is it |
| C．isn’t it | D．don’t I |