The fact that so many people still smoke in public place _______that we may need antionwide campaign to raise awareness of the riks of smoking.
| A．suggest | B．suggests | C．suggested | D．suggesting |
_______the room，I found my cat lying on the floor，dying．
| A．To enter | B．Enter | C．Entering | D．Entered |
The noise _______ by the machine could be heard at night．
| A．making | B．made | C．make | D．to be made |
The film _______ for twenty minutes when they got to the cinema．
| A．had already been on | B．has already been on |
| C．had already begun | D．has already begun |
The child _____ parents were killed in the air crash is now living with his aunt．
| A．whose | B．his | C．who | D．whom |
Only when ________ possible to settle the problem.
| A．does the chief editor come will it be | B．the chief editor comes will it be |
| C．has the chief editor come will it be | D．the chief editor comes it will be |