They ________ the train until it disappeared in the distance.
| A．saw | B．watched | C．noticed | D．observed |
As the prisoner had been ______from the outside world for twenty years, he had no idea what the outside world was like.
| A．cut off | B．cut away | C．cut out | D．cut short |
Although I tried my best to convince them _____the importance and urgency of the operation, the doctors were not convinced _______ it immediately.
| A．with; to perform | B．of; doing | C．on; to do | D．of; to perform |
It makes little _____now to tell our children that their grandparents once boiled leather shoes to stop their hunger on their way to the northeast .
| A．idea | B．meaning | C．sense | D．use |
She was fortunate ______ to star in the film which ______ in the remote mountainous village.
| A．having been picked out; was set |
| B．to have been chosen; set |
| C．to be picked out; was set |
| D．to have been chosen; was set |
The man in the lead swung his right arm _______ a signal for us to stop.
| A．as if to make | B．even if to make |
| C．as though making | D．even though making |