Must the children get up at six tomorrow morning？
No， they_____． Let them have a good sleep on weekends．（ ）
A．can'tB．needn'tC．mustn'tD．may not
Must the children get up at six tomorrow morning？
No， they_____． Let them have a good sleep on weekends．（ ）
A．can'tB．needn'tC．mustn'tD．may not
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