This machine is very easy______. Anybody can learn to use it in a few minutes.
| A．operating | B．to be operating | C．operated | D．to operate |
Mr. Smith was very disappointed to see the car he had had _____ went wrong again.
| A．to be repaired | B．repaired | C．it repaired | D．it |
Tom rushed out in a hurry, ______ the door ______.
| A．leaving; unlocked | B．leaving; unlocking |
| C．left; unlocked | D．to leave; unlocking |
This computer doesn’t work properly, because the operating system has.
| A．broken up | B．broken down |
| C．broken out | D．broken away |
—May I book two tickets for the football match on August 8 ?
—Sorry, sir. But we have no tickets
| A．spare | B．useful | C．available | D．suitable |
The amount of money _____ for the ten provinces in southern China suffering the snowstorm was soon collected．
| A．to need | B．needing | C．needed | D．which needed |