---Did you visit the temple?
---No. We _____it, but we spent too much time shopping.
| A．could have visited | B．could visit |
| C．needn’t have visited | D．mustn’t have visited |
When we arrived, she went straight to ___ kitchen and started to prepare ___ meal for us.
| A．the; a | B．/; a | C．the; / | D．a; the |
____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 |