The survey_________in our school last month shows that about 2 percent of the students are addicted to Internet games.
| A．conducting | B．having been conducted |
| C．conducted | D．to be conducted |
____they decide which college to go to, students should research the admission procedures.
| A．Once | B．While | C．Until | D．As |
The time and effort he has devoted during the past few years____ trees in that remote area is now considered to be of great value．
| A．to plant | B．to planting | C．plant | D．planting |
That car accident ____all his life. After that he was limited to a wheelchair.
| A．damaged | B．destroyed | C．harmed | D．ruined |
People complain that decisions to approve or deny a permit are often ____ rather than based on fixed criteria.
| A．arbitrary | B．conscious | C．appropriate | D．controversial |
---When did you last hear ____ Jay?
---He phoned me this morning, and we agreed ____ a time and place to meet.
| A．of; to | B．about; with | C．from; on | D．from; with |