The singer sang one more song at the _____ of enthusiastic fans.
| A．command | B．recognition | C．request | D．service |
The accident was my fault, so I had to pay for the damage ________ the other car.
| A．of | B．at | C．to | D．on |
Mr. Joe, ________ professor at the University of Fribourg, is famous for his academic achievements in ________ World History.
| A．the; / | B．the; a |
| C．a; the | D．a; / |
The young woman got to the cinema two hours ahead of time ________ she could get a good position.
| A．so that | B．in case |
| C．in order | D．now that |
English teachers are supposed ________ their students a test in class, even after class, ________ better teaching results.
| A．to give; ensuring | B．giving; to ensure |
| C．to give; to ensure | D．giving; ensuring |
Other genetic similarities suggested they all ________ a single, common ancestor about 300 years ago.
| A．had | B．have had | C．have | D．had had |