Only after the second tower of the World Trade Centre did people know it was not an accident, but an attack of some kind.
| A．had hit |
| B．did fall |
| C．was hit |
| D．was fallen |
The petrol tank is empty. I _________it up before we left home.
| A．had to fill | B．would have filled |
| C．should have filled | D．could have filled |
—Did you get a ticket then?
—Yes,otherwise I _________ the concert last night.
| A．didn’t attend | B．wouldn’t attend |
| C．hadn’t attended | D．wouldn’t have attended |
She never laughed,_________ lose her temper.
| A．or she ever did | B．nor did she ever |
| C．or did she ever | D．nor she ever did |
Tom is an honest man; I say it,_________ I have been against him.
| A．even though | B．as long as | C．as if | D．and yet |
He apologized to me for his_________ me to his home.
| A．delay inviting | B．delaying to invite |
| C．delay to invite | D．delaying inviting |