Many people like white as a color as it is a _____ of purity.
| A．symbol | B．sign | C．signal | D．symptom |
It took us several hours to make the old man ________ of the safety of travelling by air.
| A．believed | B．convinced | C．informed | D．persuaded |
No one can ________ how the election will turn out，as there are many unknown facts.
| A．protect | B．prepare | C．prevent | D．predict |
Anyone who is in ________ of weapons without permission is considered lawbreaking.
| A．command | B．control | C．charge | D．possession |
All the students are looking forward to the first ________ to take the College Entrance Examinations.
| A．measure | B．attempt | C．purpose | D．desire |
--– Who should be responsible for the accident?
--– The boss, not the workers. They just carried out the order ________.
| A．as told | B．as are told | C．as telling | D．as they told |