The ___________ you drive, the _____________ you will be.
| A．more carful, safer | B．most careful, safest |
| C．more carefully, safer | D．most carefully, safest |
_________ can I get to the library
| A．What | B．Where | C．Who | D．How |
--- Where ___________ your pen pals from? --- The United States.
| A．does | B．do | C．is | D．are |
This is a nice city ______ many interesting places.
| A．of | B．with | C．on | D．and |
A large number of students planting trees now, the number of the students 2000.
| A．is, is | B．are, is | C．is, are | D．are, are |
The government keep our country.
support B. supports C. supporting D. supported