You _____ wash your hands before meals. It is good for your health. [ &n...
You_____washyourhandsbeforemeals.Itisgoodforyourhealth.[]A.mayB.canC.havetoD.must...
You _____ wash your hands before meals. It is good for your health. [ ]
A. may B. can C. have to D. must 展开
A. may B. can C. have to D. must 展开
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