21. The film was so boring that i/we couldn't watch till the end.
=> S + be + too + adj + to-V
= S + be + so + adj + that + clause
22. The house on the corner is too expensive for us to buy.
=> S + be + not + adj + enough + ( for sb) + to-V
= S + be + too + adj + ( for sb ) + to-V
23. I spend one hour and a half driving my children to school.
=> spend time + V-ing = take so time to do sth: tiêu tốn thời gian làm điều gì
24. She is interested in taking photos of her children
=> be keen on = be interested in = be fond of: thích làm điều gì
25. Taro is not interested in reading books.
=> not be interested in + V-ing: không thích làm gì
26. It took them half an hour to walk to the bus stop.
=> Take/ Took so time to do sth: mất của ai đó bao nhiều thời gian để làm gì
27. You should not spend time hanging out with him.
=> waste time doing sth = spend time doing sth: tiêu tốn/ lãng phí thời gian làm điều gì
28. Girls often spend hours buying new clothes.
=> waste time doing sth = spend time doing sth: tiêu tốn/ lãng phí thời gian làm điều gì
29. What about having a cup of tea.
=> Let's + V-infi = What about + V-ing: Câu mời, hẹn ai đó làm gì
30. How about going to the cinema together.
=> Why don't we + V-infi = How about + V-ing: Câu mời, hẹn ai đó làm gì