The professor requested that all the students ________ the reports at once.
| A．would hand in | B．handed in |
| C．hand in | D．handing in |
When it was his turn to deliver his speech，________， he walked towards the microphone.
| A．nervously and embarrassingly |
| B．nervous and embarrassedly |
| C．nervously and embarrassing |
| D．nervous and embarrassed |
In our childhood, we were often _______by grandma to pay attention to our table manners.
| A．demanded | B．reminded | C．allowed | D．hoped |
She’s arranged________ swimming lessons next month.
| A．her son to have | B．for her son to have |
| C．for her son having | D．her son having |
I’m sorry，the sales manager is not______. He is on the telephone at the moment.
| A．reasonable | B．suitable |
| C．valuable | D．available |
With his attention ________on the job，he didn't even look up when we came in.
| A．to concentrate | B．concentrating |
| C．concentrated | D．having concentrated |