The president promised to keep all the board members _________ of how the negotiations were going on.
| A．inform | B．informing | C．be informed | D．informed |
Great changes _______ in this city over the past five years.
| A．took place | B．have taken place | C．were taken place | D．have been taken place |
If you see Jack please give my __________ to him for not having written to him.
| A．apology | B．excuse | C．message | D．theory |
Do you think the plan _________ out as soon as possible?
| A．should carry | B．ought to be carried |
| C．ought to have carried | D．ought to have been carried |
—Why do you eat so little?
—I’m _______ a diet to reduce some weight.
| A．in | B．on | C．with | D．under |
Some policemen should be sent to _______ them _______ the animals.
| A．prevent; to kill | B．stop; killing |
| C．keep; to kill | D．keep; killing |