Google has not kept the written promise ________ made when entering the Chinese market by not checking its searches.
| A．one | B．this | C．that | D．it |
Since Tom downloaded a virus into his computer, he cannot open the file now.
| A．constantly | B．accidentally |
| C．deadly | D．eventually |
If you are from doing something, you are officially prevented from doing it.
| A．seeped | B．dispersed | C．bombarded | D．banned |
The school offers many _____ activities for the local students.
| A．infectious | B．recreational |
| C．fragile | D．vocational |
It is ______ that the noise around us is a(n) _______ to our health and well being.
| A．preventable; precaution | B．denial; existence |
| C．undeniable; hazard | D．vital; culprit |
We can broaden our horizons through _________ to new things.
| A．hazard | B．exposure | C．recreation | D．vapor |