More and more people have realized that we won’t have cleaner water to drink unless something _______soon.
| A．is done | B．was done | C．will be done | D．to be done |
The disabled people feel grateful _______ you ________ your help.
| A．for; to | B．to; for | C．for; for | D．to; to |
The old man should be treated with .
| A．kind | B．kindness | C．kindly | D．kinder |
The children should go to school instead of to support their families.
| A．to work | B．work | C．works | D．working |
By local doctors and nurses, we hope more people.
| A．train, help | B．training, helping | C．training, to help | D．train, helping |
I think____ important to learn English well.
| A．this | B．that | C．it | D．you are |