mik cần bài này gấp, mn giải nhanh giúp mik với

`1` mustn't

`2` don't have to

`3` mustn't

`4` mustn't

`5` don't have to

`6` don't have to

`7` don't have to

`_________________________________________________`

`***` Không được làm gì (Bắt buộc):

`-` S + mustn't + V-inf

`***` Không cần làm gì (không bắt buộc): 

`-` S + don't have to + V-inf

`-` S + doesn't have to + V-inf

`->` I, you, we, they, N-số nhiều + don't have to

`->` He, she, it, N-số ít + doesn't have to

`o` `Ley`

`1` mustn't
`2` don't have to
`3` mustn't
`4` mustn't
`5` don't have to
`6` don't have to
`7` don't have to

`-----------`
`***` Don't/Doesn't have to: Không cần làm gì 
`+` S + don't have to + V-inf
`+` S + doesn't have to + V-inf

`***` Mustn't: Không phải làm gì
`+` S + mustn't + V-inf