29. If city noises____from increasing, people___shout to be heard even at the dinner table 20 years from now.
| A．are not kept; will have to | B．are not kept; have to |
| C．do not kept; will have to | D．do not kept; have to |
20. _______, English is one of the most important subjects.
| A．It is known to all that | B．As is known to all that |
| C．As we know | D．As it is known to all |
19. At that time, people_____early in the morning in winter, and coal them warm.
| A．used to get up; used to keep | B．were used to getting up; was used to keep |
| C．used to get up; was used to keeping | D．were used to get up; was used to keep |
18. When Tom woke up, he found himself_______in bed, with his bag beside him.
| A．lying; laid | B．lying; lay | C．lie; lying | D．lied; lied |
17. They don’t think advertisements are useful for our daily life, .
| A．aren’t they | B．are they | C．don’t they | D．do they |
16. He hasn’t come yet. What do you think__________to him?
| A．happens | B．has happened | C．happening | D．to happen |