---Jack，do you mind if I use our computer for a while?
---Not at all.___.
| A．You’ll use it. | B．Go ahead. | C．Come on. | D．Take it easy. |
Never before ____ in greater need of modern public transport than it is today.
| A．has this city been | B．this city has been |
| C．was this city | D．this city was |
Clearly and thoughtfully________, the book inspires confidence in students who wish to seek their own answers.
| A．writing | B．to write |
| C．written | D．being written |
Jenny was _________ to hear the news that their team didn’t win the game.
| A．cast aside | B．cast away |
| C．cast off | D．cast down |
—I have got a headache.
—No wonder. You ________ in front of that computer too long.
| A．work | B．are working |
| C．worked | D．have been working |
______ most efficient way to understand thousands of new words is to gain ________ good knowledge of basic word formation.
| A．A; a | B．The; 不填 |
| C．A; 不填 | D．The; the |