— How is your son getting along with his work in England?
—Well. He’s ___ very easily to the new environments.
| A．adopted | B．adapted | C．adjusted | D．accustomed |
. I want to be very careful to talk only about ____ we've formally tested.
| A．which | B．that | C．what | D．whether |
If we had taken the other road, we ________ earlier.
| A．would arrive | B．might arrive | C．had arrived | D．might have arrived |
The driver _____, according to the newspaper, to have been killed in the traffic accident.
| A．said | B．was saying | C．was said | D．had been said |
．— Have you ever visited the Opera House?
—Yes．When I was in Sydney, I ______ it twice．
| A．have visited | B．visited | C．had visited | D．would visit |
Oh, much smoke here ! Somebody _____ the window, please.
| A．opens | B．open | C．shall open | D．will open |