By the year 2020 scientists _____ a lot of research on AIDS.
| A．had done | B．do | C．are doing | D．will have done |
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I’m afraid he can’t _____ the idea of having a woman as his boss.
| A．fit for | B．adapt to | C．adapt | D．suit |
—John, don’t waste any time and there’s only 25 minutes left before the train leaves.
—Don’t worry , mum. I think I can ____it.
| A．take | B．make | C．do | D．achieve |
Although he offered her a high salary, he could not ____ her to accept a position with his firm.
| A．persuade | B．advise | C．suggest | D．convince |
—I have some big news for you. You’ve been accepted as a member of our
club.
—_______ That’s great!
| A．Have I ? | B．Pardon? | C．Congratulations! | D．Good idea! |
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