．There has been a（n）____of sadness in the small town since a boy was drowned in the river．
| A．scene | B．atmosphere |
| C．condition | D．appearance |
In my childhood, my grandma used to say “ helping others ________ helping yourself”, which ________ a deep effect on me all my life.
| A．mean; have had | B．means; has had |
| C．means; had had | D．mean; had had |
Believe it or not, your ship isn’t quite sunk, as there are some ways to ________ a new career even if it’s something you’ve never done before.
| A．burst into | B．get through |
| C．break into | D．comb through |
They eat only plant foods, and take care to ________ animal products from other areas of their lives.
| A．contain | B．maintain |
| C．exclude | D．Include |
The accident that happened at an oilfield ______ the southeast coast of the USA has caused great damage to the environment.
| A．away | B．from |
| C．off | D．beyond |
The Bitcoin is a form of electronic money which has been created ___ for use on the Internet.
A. perfectly B specifically
C. extremely D. especially