`-` BĐ :

`+` Used to : S + used to be + VpII ( by O )

`+` Have to : S + have / has + to be VpII ( by O )

`+` Must : S + must / mustn't + be VpII ( by O )

`44`.Breakfast used to be cooked for his son

`45`.He has to be punished for being late by the teacher

`46`.Ms Lan's essay mustn't be retyped

`\text{# TF}`

`44` Breakfast used to be cooked for his son 

`-` BĐ `-` Used to : S + used to + be + `V_(pp)` + ... + (by O/sb)

`-` Chủ ngữ câu CĐ là "he" `->` Câu BĐ không cần thêm "by him'

`45` He has to be punished for being late by the teacher 

`-` Has to : phải , nên `->` Là động từ khuyết thiếu

`-` BĐ `-` ĐTKT : (+) S + ĐTKT + be + `V_(pp)` 

`-` Chủ ngữ "He" số ít `->` Dùng has

`46` Ms Lan's essay mustn't be retyped

`-` Must : Phải `->` Là ĐTKT

`\text{@ TheFallen}`