One summer night in 1990, a reporter appeared at the door of Thomas Edison’s laboratory, _____ for an interview.
| A．asked | B．having asked |
| C．being asked | D．Asking |
George always does his best, and that’s ______ I like about him.
| A．who | B．how | C．whether | D．what |
The staff are excited that they have succeeded in what they ____ to do three months ago.
| A．set off | B．set about | C．set out | D．set up |
--- How’s everything going?
--- _______________.
| A．Everything is finished | B．Not so bad, you know |
| C．Everything has been done | D．Not doing wrong, you know |
When the exciting news eventually came, the girl______ her feelings and burst into tears.
| A．lost sight of | B．lost control of | C．took hold of | D．took charge of |
Not until all the fish die in the river ____ how serious the pollution was.
| A．did the villagers realize | B．the villagers realized |
| C．the villagers did realize | D．didn’t the villagers realize |