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must mustn't and needn't
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Those who finish their exam ---- start making noise. (must / mustn't / needn't / don't have to)
mustn't
Oops!
Okay!
You ---- bring your tennis rackets for your PE classes. (must / mustn't / needn't / don't have to)
must
Oops!
Okay!
Students ---- stay at school during lunch break, they can go out. (must / mustn't / needn't / don't have to)
needn't / don't have to
Oops!
Okay!
I _____________________ take my medicine three times a day. (must / mustn't / needn't)
must
Oops!
Okay!
She has enough food in the fridge, so she _____________________ go shopping every day. (must / mustn't / needn't / doesn't have to)
needn't / doesn't have to
Oops!
Okay!
The book I gave you is very valuable. You _____________________ be careful and take good care of it. (must / mustn't / needn't / don't have to)
must
Oops!
Okay!
You _____________________ help me. I can prepare the meal on my own. (must / mustn't / needn't / don't have to)
needn't / don't have to
Oops!
Okay!
Students ---- wear uniform to school. (mustn't / needn't / have to)
have to
Oops!
Okay!
You ---- hand in your assignment before the deadline. (must / mustn't / needn't / don't have to)
must
Oops!
Okay!
The doctor said I _____________________ smoke so much. (mustn't / needn't / have to)
mustn't
Oops!
Okay!
You-----wear a helmet when driving a motorbike. (must / have to / needn't)
have to
Oops!
Okay!
You _____________________ shout in a library. (must / mustn't / needn't)
mustn't
Oops!
Okay!
Students ---- come to class late. (must / mustn't / needn't / don't have to)
mustn't
Oops!
Okay!
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