`1`.I started working in this factory 3 years ago

`\rightarrow` S + started / began + V-ing / N + time : Bắt đầu làm việc gì đó

`2`.That film wasn't watched last night

`\rightarrow` Câu bị động - Thì QKĐ : S + was / were + V3 / PII ( by O )

`3`.Although the weather was bad , we still worked hard

`\rightarrow` Although + C1 + C2 : Mặc dù

`4`.Is the floor often cleaned every day ?

`\rightarrow` Câu bị động - Thì HTĐ : S + be + V3 / PII ( by O )

`5`.Tom used to go fishing in the river when he was small

`\rightarrow` `\text{S + used to + V :}` Đã từng

`6`.Math isn't being studied in the class now

`\rightarrow` Câu bị động - Thì HTTD : S + is / am / are + being + V3 / PII ( by O )

`7`.This is the first time she has eaten this seafood

`\rightarrow` This is the first time + S + have / has + V3 / PII : Lần đầu tiên làm gì đó

`8`.The lesson wasn't revised carefully by Mai yesterday

`\rightarrow` Câu bị động - Thì QKĐ : S + was / were + V3 / PII ( by O )

`9`.Mr.Binh last came back home before he left for the city

`\rightarrow` S + last + Ved / V2 + [ was + time / before + timeline ] : Lần cuối làm gì

`10`.Is comic book being read in the room at the moment ?

`\rightarrow` Câu bị động - Thì HTTD : S + is / am / are + being + V3 / PII ( by O )

`11`.In spite of the dark house , we still read books in it

`\rightarrow` In spite of / Despite + V-ing / N + Clause : Mặc dù

`12`.Nga's mother isn't helped with the housework

`\rightarrow` Câu bị động `-` Thì HTĐ : S + be + V3 / PII ( by O )

`\text{@ TheFox}`