On her next birthday, Ann _______ married for twenty years.
| A．is |
| B．has been |
| C．will be |
| D．will have been |
My parents have promised to come to see me before I ___for Africa.
| A．have left | B．leave | C．left | D．will leave |
The way the guests____in the hotel influenced their evaluation of the service.
| A．treated | B．were treated | C．would treat | D．would be treated |
Over the past decades , sea ice _____in the Arctic as a result of global warming.
| A．had decreased | B．decreased | C．has been decreasing | D．is decreasing |
--I would why he ____so strangely these days.
--Recent pressure at study may account for his behavior.
| A．was acting | B．is acting | C．acted | D．acts |
--Please tell the court what really happened.
--Oh, I ____ , and I hit a parked car.
| A．wouldn’t pay attention | B．hadn’t paid attention |
| C．haven’t paid attention | D．wasn’t paying attention |