Happy times usually pass quickly without .
| A．noticing | B．being noticed | C．having noticed | D．to be noticed |
So heavy is his _______ that he is as busy as a bee, unable to spare(抽出) even a day for his family in a month.
| A．block | B．source | C．schedule | D．attitude |
Whoever is_________ to the demanding job will be offered the well-paid one.
| A．frequent | B．equal | C．native | D．familiar |
I've heard from a __________ source that many of the workers may lose their jobs because our company is running very badly.
| A．stubborn | B．reliable | C．extreme | D．determined |
Government officials cannot ________ accept bribes(受贿)，but in China quite a few take advantage of their power to break the rule .
| A．legally | B．gradually | C．gratefully | D．sincerely |
It was because it had been raining for several days, leading to a flood over the fields and the villages that many people fell _______ without foods and shelters.
| A．by accident | B．in trouble | C．behind schedule | D．on purpose |