—Who has made a mess in my room?
—Who else it but your naughty son?
| A．could do | B．could have done | C．did | D．has done |
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 |
She looked up and nodded for me ______..
| A．to come in | B．coming in | C．came in | D．come in |