The purpose of technology is to make it easier ,______ it more difficult.
| A．not make | B．making not | C．not to make | D．do not make |
If it is __________ for you to go out tonight, would you like to go to the cinema with me?
| A．practical | B．necessary | C．convenient | D．grateful |
He made a great __________ to the success of the project.
| A．contribution | B．progress |
| C．distinction | D．conclusion |
A student in our school will be immediately sent home if he is found __________ computer games at night.
| A．play | B．playing | C．to play | D．played |
This time next week I __________ to Guangzhou to attend a meeting with my manager.
| A．will fly | B．am fly |
| C．shall be flying | D．fly |
The doctor will not permit mother up __________ her leg is better.
| A．if | B．until | C．when | D．unless |