46. He spent two days decorating the living room.
- It + takes + S + time + to V + O.
= S + spend + time + V-ing + O.
47. Her sister doesn't speak Russian as well as her.
- S1 + V+ so sánh hơn + S2.
= S2 + V (not) + so sánh bằng + S1.
48. The boy isn't tall enough to reach the book on the shelf.
- S + be/V + too + adj/adv + to V.
= S + be/V not + adj/adv (trái nghĩa với câu trên) + to V.
49. He wishes he knew enough English vocabulary to talk to foreigners.
- Câu ước ở hiện tại chia thì QKĐ.
50. The children is interested in watching the film.
- be interested in V-ing: hứng thú trong việc gì.
