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Look at the naughty boy! You have taught him how to behave himself. A. must B. m

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Look at the naughty boy! You have taught him how to behave himself. A. must B. m

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

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

试题答案

D