The manager asked me, "Do you work from home last year?" (Turn into reported speech) 

`->` The manager asked me if I worked from home the previous year.

`-` Cấu trúc câu tường thuật dạng câu hỏi Yes/No questions :

S + asked (+O)/wondered/ wanted/ wanted to know + If/whether + S+ V(lùi thì)

HTĐ `->` QKĐ

Last year `->` The previous year/the year before

-> The manager asked me if I worked from home the previous year.

- Tường thuật yes / no: S + asked + O + if / whether + S + V ( lùi thì )

- Lùi thì: HTD -> QKD

- Lùi trạng từ chỉ thời gian: Last year -> The previous year / The year before