`51.` I wish I had helped him yesterday.

`-` Diễn tả những mong ước về sự việc không có thật ở quá khứ, hay giả định một điều trái với thực tế trong quá khứ. `=>` Câu ước quá khứ.

`-` Công thức`:` S1 + wish(es) + S2 + had + Vpp.

`-` Khi viết lại câu, phải đổi thể với câu đã cho.

`52.` Linda asked me if I was interested in playing cards in my free time.

`-` Câu tường thuật với dạng Yes/ No-question:

S + asked + O + if/ whether + S + V(lùi thì).

`-` Thì hiện tại đơn `->` Thì quá khứ đơn.

`-` your `->` my

`-` Cấu trúc "be interested in doing sth": thích làm gì

`53.` Mr Smith asked Tom how many students were here in his class.

`-` Câu tường thuật với dạng WH-question:

S + asked + O + WH-words + S + V(lùi thì)

`-` Thì hiện tại đơn `->` Thì quá khứ đơn.

`-` there `->` here

`-` your `->` his

`54.` If he doesn't hurry, he can’t catch the bus.

`-` Unless `=` If not: Nếu không

`-` Câu điều kiện loại `1`: If + HTĐ, S + will/ can/ may/... + (not) + Vinf.

`55.` I’d rather you didn't ask me that question.

`-` S + would rather + S + V(lùi thì).

`56.` I haven’t seen Bob since I was in Ho Chi Minh City.

`-` S + last + Ved/ V2 + (O) + when + QKĐ.

`=` S + have/ has + not + Vpp + (O) + since + QKĐ.

`-` see - saw - seen: nhìn, thấy

`57.` Mai told me to call her at 6 o’clock the following morning.

`-` Câu tường thuật với câu cầu khiến:
S + asked/ told + O + to Vinf.

`-` tomorrow morning `->` the following morning

`58.` It took Peter three hours to repaint his house.

`-` Cấu trúc: S + spend (biến đổi) + time + V-ing.

`=` It + take (biến đổi) + O + time + to Vinf.

`59.` It was such a boring film that I fell asleep half way through it.

`-` Cấu trúc: It + to be + such + a/ an + adj + N + that + clause.

`-` such ... that: quá ... đến nỗi

`60.` The furniture was too expensive for me to buy it.

`-` Cấu trúc: S + to be + so + adj + that + clause.

`-` Cấu trúc: S + to be + too + adj + (for O) + to Vinf.

`51.` I didn’t help him yesterday.

`⇒` I wish I had helped him yesterday.

`-` Cấu trúc câu ước ở quá khứ: `S` + wish(-es) + `S` + had + `V`(3/-ed)

`52.`” Are you interested in playing cards in your free time ? “- Linda asked.

`⇒` Linda asked me if I were interested in playing cards in my free time.

`-` Cấu trúc: `S` + asked + `O` + if/ whether + `S` + `V`(lùi thì).

`53.` “ How many students are there in your class ? “- Mr. Smith asked Tom.

`⇒` Mr. Smith asked Tom how many students were there in his class.

`-` Cấu trúc câu tường thuật: `S` + asked + `O` + Wh-words + `S` + `V` (lùi thì)

`54.` Unless he hurries, He can’t catch the bus.

`⇒` If he doesn't hurry, he can't catch the bus.

`-` Cấu trúc: Unless ... = If ... not

`55.` Please don’t ask me that question.

`⇒` I’d rather you didn't ask me that question.

`-` Cấu trúc: `S` + would rather + `S` + `V` (lùi thì)

`56.` I last saw Bob when I was in Ho Chi Minh City.

`⇒` I haven’t seen Bob since I was in Ho Chi Minh city.

`-` Cấu trúc: `S` + have/ has + not + Vpp + (`O`) + since + `S` + `V` (chia ở thì quá khứ đơn).

`57.`” Please call me at 6 o’clock tomorrow morning. “ said Mai.

`⇒` Mai told me to call her at 6 o'clock the following morning.

`-` Cấu trúc: `S` + told/ asked sb to do sth: nói ai đó làm gì (câu tường thuật)

`58.` Peter spent three hours repainting his house.

`⇒` It took Peter three hours to repaint his house.

`-` Cấu trúc: It takes sb +time/ money + to `V`...

`59.` The film was so boring that she fell asleep.

`⇒` It was such a boring film that she fell asleep.

`-` Cấu trúc: `S` + be + such + (a/ an) + that + `S` + `V` + ...

`60.` The furniture was so expensive that I didn’t buy it.

`⇒` The furniture was too expensive for me to buy.

`-` Cấu trúc: `S` + be + too + adj + for + `O` + to `V`...

$\textit{@Bulletproof}$