David is a skillful worker. I’m sure he has enough _______ to fix all the electronic ______.
| A．experience; equipment | B．experience; equipments |
| C．experiences; equipment | D．experiences; equipments |
At the end of the day he is totally ___ and sleeps well at night.
| A．exhausted |
| B．exciting |
| C．exhausting |
| D．excited |
___experience, he is no more skillful than Alice in practical operation.
| A．As a result of |
| B．In search of |
| C．Through lack of |
| D．In terms of |
When we ___ electricity, we get heat from an electric heater.
| A．switch on |
| B．put off |
| C．turn off |
| D．carry on |
In cold weather, it’s hard to get the car ___.
| A．started |
| B．to start |
| C．start |
| D．being started |
If anything happens, please keep me ___.
| A．informing |
| B．inform |
| C．to be informed |
| D．informed |