14. We spent five hours getting to London. ( S + spend/spent + time/money/.. + V-ing + O )
15. There are more than thirty theatres in London. ( There are + N(s/es) + adv )
16. on ( on foot = đi bộ )
17. Tom prefers going fishing to listening to the teacher.
Tom prefers to go fishing rather than (to) listen to the teacher. ( S + prefer + V-ing + to + V-ing , áp dụng : S + would prefer + to V + rather than + (to) V ))
18. He has worked at the factory for 15 years. ( Thì hiện tại hoàn thành )
19. When did they buy the car ? ( Thì quá khứ đơn )
20. It is a long time since I last ate chicken. ( It is + khoảng thời gian/ mốc thời gian + since + S + V(quá khứ đơn))
21. would ( S + would rather + V + than + V )