Evidence of a powerful volcano, which erupted under the ice sheet of West Antarctica around 325BC and might still be active now, __________ so far by British scientists.
| A．confirmed | B．has confirmed |
| C．is confirmed | D．has been confirmed |
—Sorry, I am late.
—That’s OK. You are here, that’s what _____
| A．does | B．counts | C．works | D．stays |
—Where _______?
—I got caught in the traffic, or I would have been here sooner.
| A．did you go | B．had you gone |
| C．have you been | D．were you going |
--- What’s reported in the news?
--- The earthquake yesterday is said _______ more than 5 hundred people.
| A．to kill | B．that it is | C．to have killed | D．that it has killed |
If he ___ me his telephone number yesterday, I ___ able to ring him up now.
| A．told, would be | B．had told, would have been |
| C．had told, would be | D．told, am |
The internet has made ____ possible for everyone to talk with friends miles away.
| A．that | B．this | C．one | D．it |