______the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
| A．If | B．While | C．Because | D．As |
An awful accident, however, occur the other day.
| A．does |
| B．did |
| C．has to |
| D．had |
I am muchwith the matter whichall of us.
| A．concerning; concerned |
| B．concerned; concerned |
| C．concerning; concern |
| D．concerned; concerns |
The computer systemsuddenly while he was searching for information on the Internet.
| A．broke down |
| B．broke out |
| C．broke up |
| D．broke in |
Gamorreans have a great affectionthese creatures, finding them cute and cuddly.
| A．to |
| B．in |
| C．with |
| D．for |
Emergency line operators must alwayscalm and make sure that they get all the information they need to send help.
| A．grow |
| B．appear |
| C．become |
| D．stay |