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 |
相关试题
Don’t give up regardless of difficulty and failure, you’ll never achieve your goals.
| A．and | B．but | C．or | D．so |
— Have you got any books on English grammar? I’d like to borrow .
—Yes, here you are. But you must return it by Friday.
| A．it | B．one | C．some | D．any |
David got a higher grade in the final exam, for, you see, he made mistakes.
| A．few | B．fewer | C．little | D．less |
I suggested to my mother that she a drawing club after her retirement form teaching.
| A．join | B．joins | C．joined | D．would join |
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