The contributions of some companies have ________ much improvement in the teaching and learning environment in this university.
| A.carried out | B.changed from |
| C.resulted in | D.succeeded in |
Our waste recycling project ________ a lot of investigation and paperwork had been done by the end of last term.
| A.involved | B.to involve |
| C.being involved | D.involving |
Every morning Jack's wife will stand before the mirror, ________ carefully until she has to go to work.
| A.dressed | B.dressing |
| C.to dress | D.having dressed |
________ for a whole night, we still couldn't agree on when to start and where to go for the holiday.
| A.Discussed | B.Having discussed |
| C.Discussing | D.Being discussed |
In my opinion, keeping dogs well ________ up is advisable for dog owners.
| A.to tie | B.being tied |
| C.tied | D.to be tied |
The old couple, ________ in the small village for years, can tell the names of all the villagers.
| A.living | B.lived |
| C.having lived | D.to have lived |