Marry _____ as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
| A．has served | B．had served | C．has been served | D．served |
The members of the club wouldn't run a _____ in entrusting（委托） the organization to an unreliable person.
| A．danger | B．risk | C．hazard | D．chance |
. Many new _____ will be opened up in the future for those with a university education.
| A．opportunities | B．realities | C．necessities | D．probabilities |
.It isn't quite _____ that he will be present at the meeting.
| A．sure | B．right | C．exact | D．certain |
John was very upset because he was _____ by the police with breaking the law.
| A．accused | B．arrested | C．sentenced | D．charged |
The child enjoyed _____ up the wooden bricks then knocking them down.
| A．adding | B．pushing | C．piling | D．forming |