1. A new school will be built in this district.

→ câu bị động thì TLĐ: S + will + be + V3/ed + (by+O)

2. Nga asked Nam if his father lived near here.

→ S + asked + O + if/wheter + S + V(lùi thì): câu gián tiếp dạng yes/no question

3. I haven't seen that film for 20 years. 

→ The last time + S + V2/ed+ was + time + ago: Lần cuối làm gì

= S + haven't/hasn't + V3/ed + for + khoảng thời gian

4. If I had enough money, I would buy that dictionary.

→ câu ĐK loại 2 ( diễn tả 1 sự việc không thể xảy ra ở hiện tại ): If + S + QKĐ ( đối với động từ tobe thì ta chỉ dùng 'were' ), S + would/could (not) + V0

`text{1. A new school will be built in this district}`

`text{2. Nga asked Nam if his father lived near here}`

`text{3. I haven't seen that film for 20 years}`

`text{4. If I had enough money, I would buy that dictionary}`