He feels it his duty ____ others.
| A．to help | B．to be coming | C．help | D．helped |
You'd better __________ your scores and see if you have passed the exam.
| A．add up |
| B．go through |
| C．set down |
| D．come up |
Remember, at any given moment, you are in __________ with one per-son and one person only-yourself.
| A．competition |
| B．contrast |
| C．connection |
| D．league |
Without the contribution of Qian Xuesen, China __________ such great achievements in space technology.
| A．wouldn't make |
| B．can't make |
| C．shouldn't have made |
| D．wouldn't have made |
Unfortunately, many people were buried __________ in the earthquake which happened in Taiwan just a few days ago.
| A．living |
| B．live |
| C．alive |
| D．lively |
__________ well prepared you are, you still need a lot of luck in finding a suitable job.
| A．However |
| B．Whatever |
| C．No matter |
| D．Although |