38. She said she was working in a restaurant, and didn't care much for it.

Câu tường thuật: HTTD → QKTD

                               HTD → QKD

39. I haven't spoken to her for 2 years.

It's + time + since + S + (last) + V-ed/P1 + O.

→ S + have/ has + not + V-ed/ P2 + O + sine/ for.

40. It's interesting to go swimming in the river in the summer.

It's + adj + to-V + O

38. She said that she was working in a restaurant, and didn't care much for it. 

Câu gián tiếp dạng âu kể: S+said (to+O)/told (O)+(that)+S+V (lùi thì) 

- Câu trên lùi từ "I'm working" (HTTD)-> "was working" (QKTD) 

- Lùi từ don't care (HTĐ)-> didn't care (QKĐ) 

39. I haven't spoken to her for two years. 

- It's+khoảng thời gian+since+S (last)+Ved/V cột 2

= S+hasn't/haven't+Vpp+for+khoảng thời gian/since+mốc thời gian

40. It is interesting to go swimming in the river in the summer.