She________ know the answer, but I'm not sure.
| A．maybe | B．may be | C．may | D．must |
—Could you help me with my English now?
—Yes,I_____.
| A．can | B．could | C．must | D．should |
You ___________ follow the traffic rules. Otherwise, it is dangerous for you.
| A．must | B．can | C．may | D．should |
--The man in a black suit _______ be our youth worker.
-- I’m sure it _____ be him. I saw him in the laboratory building some minutes ago.
| A．must; can’t | B．can; mustn’t | C．can; could | D．must; won’t |
How careless you are! You_______ more careful next time.
| A．can be | B．should be | C．may be | D．would be |
Jack ______ be in the library. He is playing football on the playground.
| A． | can't | B． | can | C． | need | D． | must not |
Can you play tennis ? --_______
A. No , he can’t B. Yes , I can C. No, I’m not
Few weight-loss pills can help to keep people slim, _______?
| A．do they | B．dodt they | C．can't they | D．can they |
—_____ you please play tennis with me? —Sorry, I _____.
| A．Could; can’t | B．Could; couldn’t | C．Can; don’t | D．Can; couldn’t |
---What can she do?
---She can ______ Chinese kung fu.
| A．plays | B．do | C．make | D．help |
—The white shoes are nice. Can I _______?
—Sure.
| A．try it on | B．try on it | C．try them on | D．try on them |
______ Tom be in his office so late at night ?
| A．Can | B．May | C．Might | D．Must |
You don't have to finish the work today. You can finish it next week.
A. mustn't B. can't C. needn't
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