The world seemed as if it was ___________. In a flash everything was destroyed.
| A．at an end | B．in the end | C．by the end | D．at the end of |
As a senior high school student, my days ____ classes and homework.
| A．are taken up | B．are filled with | C．are full with | D．are taken over |
--- What did Zhai Zhigang do while he was doing “walking” ____?
--- He ____ our national flag to the world.
| A．in space; showed | B．in the space; showed |
| C．in space; brought | D．in the space; brought |
I ____ in the street when I met an old friend of mine the other day.
| A．walked | B．was walking | C．has walked | D．had walked |
I find painting and listening to music ____.
| A．relaxing | B．is relaxing | C．relaxed | D．are relaxed |
I need one more coin before my collection ____.
| A．had completed | B．completes |
| C．has been completed | D．is completed |