It is ___________ the customers’ needs that has made chain stores so popular in big cities in China.
| A．meeting | B．met |
| C．to have met | D．being met |
. The disco, digitally in the studio, sounded fantastic at the party that night.
| A．recording | B．having recorded | C．to be recorded | D．recorded |
. While he was investigating ways to improve the telescope, Newton made discovery which completely changed man’s understanding of color.
| A．a; / | B．a; the | C．/; the | D．the; a |
. The breakdown of the machine brought the work into a mess.
| A．relevant | B．academic | C．abrupt | D．absurd |
Hangzhou is distinguished its beautiful scenery.
| A．as | B．for | C．in | D．by |
. Don’t let yourself be by a small failure in the experiment Try again.
| A．turned down | B．cast down | C．put down | D．made down |