21. However tired Nam was, he tried to finish his work.

→ cấu trúc đảo ngữ với however: However +adj/ adv + S + V, S + V

22. The storm prevented us from going camping.

→ prevented sb doing sth: ngăn cản ai đó làm gì

23. I haven't talked to him for ages.

→ It's + time + since + S + last + V2/ed: Lần cuối làm gì

= S + haven't/ hasn't + not + for + time

24. It was such an interesting book that we couldn't put it down.

→ It + be + such + (a/an) + adj + N + that + S + V: quá ...đến nỗi mà...

25. He told me not to stay up late.

→ câu tường thuật dạng mệnh lệnh: S + asked/told/ordered/warned ... + O + (not) to_V

26. Such was damage that it would cost millions of dollars to repair. 

→ cấu trúc đảo ngữ với such: Such + Vbe + N + that + S + V

27. It was not until 1980 that she graduated from university.

→ It + is/was + not until + trạng ngữ thời gian/ S + V + that + S + V: mãi cho đến khi... thì...

28. The hotel fell short of our expectations.

→ fall short of sb's expectations = not come up to sb's expectations: không được tốt đẹp như ai mong đợi

29. I have never known a more intelligent person than Mr Hung. 

→ This is + so sánh nhất + S +have/has + V3/ed

= S+ have/ has never+ V3/ed+ a more + Adj+ N + than ..

30. Only by practising English every day can you become a good English speaker.

→ cấu trúc đảo ngữ với only by: Only by + N/V_ing + trợ động từ + S + V0: chỉ bằng cách ...

31. Lan denied stealing my bag.

→ S + denied + V_ing: phủ nhận, từ chối