—Catherine, I have cleaned the room for you.
—Thanks. You _________it. I could manage it myself.
| A．needn’t do | B．needn’t have done |
| C．mustn’t do | D．shouldn’t have done |
Many memories of old times were ______ by the conversation we had during the get-together.
| A．called on | B．called in |
| C．called up | D．called for |
The political situation in Libya will become even worse unless some measures ______.
| A．will be taken | B．are taken | C．have taken | D．are to take |
The flight was put off due to the typhoon. Otherwise, we______ the beautiful scenery in Greece now.
| A．would be enjoying | B．would have enjoyed |
| C．will enjoy | D．must have enjoyed |
We are living in an age ______ we treasure very much, because it sees man’s rapid development.
| A．which | B．when | C．where | D．what |
These comments are not directly ______ to the inquiry about safety standards.
| A．controversial | B．accessible | C．appropriate | D．relevant |