| 1 | call for an appointment |
| 2 | call it a day |
| 3 | call off |
| 4 | call on sb. |
| 5 | camping trip |
| 6 | campus security office |
| 7 | can help |
| 8 | can't put sth. Down |
| 9 | care for |
| 10 | carry on with |
| 1 | carry out |
| 2 | cash a check |
| 3 | catch on |
| 4 | catch one's breath |
| 5 | catch one's eye |
| 6 | catch up on |
| 7 | catch the flight |
| 8 | catch up with |
| 9 | change one's mind |
| 10 | check out |
