Đáp án:

1. `->`Tom completed his homework before going to bed, no matter how late it was.

  Cấu trúc : No matter `+`what/how/who/which/when `+` S `+` V

2. `->`My mother  used to get up later last year than he does now.

   Cấu trúc : S `+` V `+` adj/adv `+` er `+` than `+` N

`1.`  Although it was very late , Tom still completed his homework before going bed .

Although it was very late, Tom did not complete his homework before going to bed.

 - Although Tom did not finish his homework before going to bed: Mặc dù Tom không hoàn thành bài tập trước khi đi ngủ.

- Although + S + V 

`2.`  My mother used to get up late last year .

"My mother did not use to get up late last year."

- Chuyển khẳng định sang phủ định 

- Câu khẳng định: Subject + used to + verb (câu mệnh đề) 

- Câu phủ định: Subject + did not + use to + verb (câu mệnh đề)

`\color{lightpink}{\text{Ponnie?} `