33. The salary of a professor is higher than that of a secretary

→ The salary of a secretary is not as high as a professor's

34. He felt very miserable, so he looked for someone to share his life with.

→ He looked for someone to share his life with because he felt very miserable

35. I didn't realize how late it was and I didn't stop studying till after midnight

→ I didn't realize how late it was and I went on studying till after midnight

36. When did you start working on the project?

→ How long have you worked on the project?

→ Ta có cấu trúc:

· S + have/has + VPII = S + started/began + Ving

#duongggggg123

33. The salary of a secretary is not as high as that of a professor.

(Câu gốc: Lương của giáo sư thì cao hơn của thư kí-> Lương của thư kí không cao bằng giáo sư

So sánh không ngang bằng với tính từ: S1+ be+ not+ as+ adj+ as+ S2)

34. He looked for someone to share his life with because he felt very miserable.

(Nguyên nhân, so+ kết quả= Kết quả+ because+ nguyên nhân)

35. I didn't realize how late it was and I went on studying till after midnight.

(not stop doing sth= go on doing sth: tiếp tục, không dừng làm gì)

36. How long have you worked on the project?

(When+ did+ S+ start+ Ving/ to V?

= How long+ has/ have+ S+ PII/ been Ving?)