The government has to close those small factories to prevent the water of the river ______.
| A．polluting | B．from polluting | C．being polluted | D．polluted |
They _________ two free tickets to Canada, otherwise they'd never have been able to afford to go．
| A．had got | B．got | C．have got | D．get |
—Have you been wasting time on computer games again?
—________．I've been studying a lot and I need a break．
| A．No way | B．Not really | C．I don't agree | D．I couldn't agree more |
________ walk is expected to last all day, so bring ________ packed lunch．
| A．A ; a | B．The; 不填 | C．The; a | D．A ; 不填 |
I regret _________ you that you can't ________ the game.
| A．telling; join | B．to tell; take part in |
| C．to tell; attend | D．telling; participate in |
All the staff in our company are considering _________ to the city center for the fashion show.
| A．to go | B．to have gone | C．having gone | D．going |