It is proposed that another meeting _______ to discuss how to give more support to the underdeveloped area.
| A．be held | B．have been held | C．was held | D．will be held |
21. He decided not to attend her birthday party________he had been invited to.
| A．as if | B．even though | C．because of | D．Since |
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 |