(2012年潍坊市高三质量检测)A harmonious society is like a symphony or orchestra－
each person contributes a small sound，but when________with other sounds，it becomes beautiful music.
| A．combining |
| B．being combined |
| C．combined |
| D．to be combined |
They were in great need of help then. Therefore, your timely support certainly made a(n) _____.
| A．deal | B．difference | C．decision | D．effort |
When first seeing Masaccio’s paintings, people were convinced they were looking through _____ hole in _____ wall at _____ real scene.
| A．the; a; the | B．a; a; a |
| C．a; the; the | D．a; the; a |
It was in this house ________ the villagers held the secret meeting.
| A．where | B．in which |
| C．that | D．when |
The little boy won’t go to sleep ________ his mother tells him a bedtime story.
| A．or | B．but | C．whether | D．unless |
He’s posted the letter, _________ he?
| A．isn’t | B．doesn’t |
| C．hasn’t | D．wasn’t |