We are wondering ________ we can prevent people from polluting the earth.
| A．who | B．that | C．whether | D．what |
---I’m too nervous to give a talk in front of so many people.
--- _________, Maria. I think you can make it.
| A．That’s true | B．With pleasure |
| C．Come on | D．You’re right |
---Mr. Wu, I can’t understand everything in class.
---Don’t worry! I’ll _______ the main points at the end.
| A．record | B．review |
| C．require | D．remember |
--- What did Lucy ask just now ?
---- She asked _________________________.
| A．if there will be a meeting. |
| B．when the meeting will begin |
| C．if would there be a meeting |
| D．when the meeting would begin |
--- You were out when I went to visit you yesterday.
---Oh, I________ for a friend from England at the airport.
| A．was waiting | B．had waited |
| C．am waiting | D．have waited |
---__________ is it from here to Yangzhou Museum?
--- About 20 minutes by bike.
| A．How long | B．How often |
| C．How far | D．How soon |