Tim Berners Lee invented World Wide Web in 1991, which _____ everyone to use the Internet
| A．allowed | B．afforded | C．managed | D．left |
On seeing the wonderful sculpture, everyone present _____ a cry of surprise.
| A．get into | B．make sense | C．subscribe to | D．let out |
He got up late and hurried to his office, ____ the breakfast untouched.
| A．left | B．to leave | C．having left | D．leaving |
Some people maintain that watching violence on TV is one of the major causes of _____ behavior and crime in society.
| A．artificial | B．automatic | C．aggressive | D．allergic |
It is not possible to ______ with certainty what effect this event will bring about.
| A．prohibit | B．preserve | C．panic | D．predict |
This is not an economical way to get more water; ____, it is very expensive.
| A．on the contrary | B．on the other hand |
| C．on the whole | D．on earth |