She needs a faster internet connection for her online classes., You mustn't play here., Students must hand in their assignments by Friday., You must wear a belt., We needn't bring umbrellas., We mustn't forget to lock the door when we leave., They need to practise to win., You needn't bring a dictionary; I have one you can use., I need to drink water., They must wear safety glasses in the laboratory.,

7-1-19_Need and Needn't, Must and Mustn't

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