【2012北京】Today, computers are really helpful. They ____ everywhere.
| A．use | B．are used |
| C．used | D．were used |
相关试题
—What a lovely card! Where did you buy it?
—I made it by _______.
| A．me | B．I | C．mine | D．myself |
We have enough time to go to the airport. You _______ be in such a hurry now.
| A．should | B．needn’t | C．must | D．can’t |
—What do you think of Changqing?
—I think it’s becoming _______ than before.
| A．clean | B．cleaner | C．cleanest | D．the cleanest |
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