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Seriously injured in a match, David Beckham ______ lose the chance to show up at the 2010 South Africa World Cup.

       A. can     B. must   C. should D. might

It is dangerous to play with the knife. You ______ hurt yourself.

       A. can                   B. may                         C. must                 D. should

— Has Mr. Tom White arrived?

— Yes, already. _____ he wait outside or just come in?                

A. Shall          B. May  C. Could D. Must

Look at the naughty boy! You ______ have taught him how to behave himself.

A. must                   B. may                            C. can                     D. should

You _____ tell him. He is fully aware of the danger.

A. mustn’t                           B. don’t need                C. needn’t                    D. can’t

—I’m sorry. I ______ at you the other day.

   —Forget it. I was a bit out of control myself.

       A. shouldn’t shout                                     B. shouldn’t have shouted

       C. mustn’t shout                                        D. mustn’t have shouted

---It’s the office! So you _____ know eating is not allowed here.

---Oh, sorry.

       A. may                 B. will                         C. must                        D. need

       — She looks very happy. She _______ have passed the exam.

— I guess so. It’s not difficult after all.

A. should                     B. could                C. must                 D. might

So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ____ .

A. mustn’t be                                           B. may not be

C. can’t be                                        D. won’t be

—Do you think he will do me a favor?

—As far as I know, he is the last one to help others. He ____ be prepared to give you a hand, though.

A. might               B. must                 C. can                 D. should