—Would 13：00 be convenient?
—________， but I'll have to check my schedule for sure.
| A．It won't do | B．It should be fine |
| C．That's the deal | D．It's up to you |
The mobile phone has become a major means of communication, _____us to keep in touch as well as to surf the Internet to keep us _____of the latest news.
| A．permitting; informed |
| B．to permit; informing |
| C．to permit; to be informed |
| D．permitting; having informed |
---What do you think of his talk on Information Technology?
---Oh, excellent. It’s worth_____________.
| A．listening to | B．being listened to |
| C．listening | D．to be listened to |
I like getting up very early in summer. The morning air is so good______.
| A．to breathe | B．to be breathed |
| C．breathing | D．being breathed |
（）____your own needs and styles of communication is as important as learning to convey your affection and emotions.
| A．Understanding | B．To be understood |
| C．Being understood | D．Having understood |
Drivers are warned that it is dangerous to talk on the phone while________.
| A．drive | B．driving |
| C．drove | D．to drive |