1. It is well known that lung cancer is caused at least in part by smoking too much.
2. I do hope that you can come up with a better solution than this.
3.It was reported that the building of the railway had been held up by the flood.
4. I would like very much to buy the English dictionary. Unfortunately, I haven’t got enough money on me.
5.Sam couldn’t afford the camera he longed for because it was too expensive.
6.He often takes advantage of her lack of business sense to cheat her.
7. How can I be responsible for what he says?
8. He tried to hold himself in and pretended not to have heard the sad news.
9. Over and over again, the nation has got involved in foreign wars.
10. Scientists all agree that a better understanding of the human brain will help man to make full use of its limitless potential.
11.A truck pulled into the snow-covered playground of the school.
12.It was in that small room that they worked diligently and dreamed of better days to come.
13.Fortunately there was a hospital nearby and we sent him there immediately.
14.While reading the novel, she couldn’t help thinking of the five years she spent in the country.
15. Be sure not to forget what your parents said to you before you left home.
16.Some people think that boys’ scores on exams are always higher than girls’. However, this is not necessarily the case.
17.That famous actor seemed content to play a minor part in the play.
18.They have arranged for us to visit the Great Wall tomorrow. I’m sure we will have a good time there.
19. After reading the letter, the old man was so disappointed that he tore it into little bits with trembling fingers.
20.Amy used to drink nothing but coffee.
21. It’s important for nurses to stick to this rule.