At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, _______ to anyone.
| A．and not to speak | B．but could not speak |
| C．instead of speaking | D．or rather speak |
Tom went off to the EXPO Garden with his friends, __________ an exciting day of discovering the unique culture of each nation.
| A．expected | B．expecting |
| C．to expect | D．expects |
Now that you are a college student, you should learn to be __________ of your parents' help.
| A．independent | B．religious |
| C．humorous | D．careful |
Tom as well as his parents __________ to work on foot every day.
| A．go | B．goes |
| C．went | D．have gone |
Many experts hold the view __________ teacher's development is __________ the key to better education lies.
| A．which; where | B．which; which |
| C．that; where | D．that; in which |
A driver should __________ the road when __________.
| A．concentrate on; drive | B．concentrate in; driving |
| C．concentrate to; drove | D．concentrate on; driving |