Only after _______ did people know it was not an accident, but an attack of some kind.
| A．the second tower of the World Trade Centre was hit |
| B．did the second tower of the World Trade Centre fall |
| C．was the second tower of the World Trade Centre hit |
| D．the second tower of the World Trade Centre was fallen |
When your child wakes up in the morning, he should know that his daily ____ includes going to school, lunch and homework.
| A．routine | B．destination | C．requirement | D．conservation |
The child tiptoed(翘起脚尖走) quietly to the bird. ______ into the forest when he was about to catch it.
| A．Flew it away | B．Away flew it | C．Away it flew | D．Flew away it |
This picture called up my memory of that day when I ______ him for the first time.
| A．had met | B．was meeting | C．would meet | D．met |
— Hasn’t the thief admitted his crime by now?
— No, ______ questioned many times.
| A．if | B．though | C．unless | D．once |
The meeting ______ over, I found her seated at the desk and ______ to music.
| A．to be; listened | B．was; listened |
| C．was; listening | D．being; listening |