`->` Mrs. Thoa help Mai with her homework although she was tired yesterday

`-` yesterday `->` QKĐ

`+` S + V2/ed

`-` (clause 1) although (clause 2): ______ mặc dù _____

`-` help sb with sth: giúp ai đó với việc gì

`--------`

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$\color{orange}{\text{Chúc bạn học tốt ạ :33}}$

Mrs. Thoa helped Mai with her homework although she was tired yesterday.

Cấu trúc ngữ pháp của câu là: Subject + verb (past tense) + object + conjunction (although) + subject + verb (past tense)