With our knowledge practice , we can make contribution to our society.
| A．to base on | B．basing on |
| C．based on | D．base on |
The last one _______ will pay the bill.
| A．arrive | B．arrived | C．to arrive | D．arriving |
Cindy seems ______her new job.
| A．content | B．content with | C．content to | D．content for |
His father died , ______his family even worse off.
| A．to leave | B．left | C．leaving | D．leave |
Only when we failed ________ the importance of study.
| A．we realized | B．we had realized | C．did we realize | D．had we realised |
He rushed as fast as he could, ______not to be late for class.
| A．to hope | B．being hoped | C．hope | D．hoping |