The lecture, ________ at 7：00 pm last night，was followed by an observation of the moon with telescopes.
| A．starting | B．being started |
| C．to start | D．to be started |
The news about the terrible flood there greatly discouraged __________ there for sightseeing.
| A．us from going | B．us to go |
| C．our going | D．our to go |
He's unlucky, and he's always suffering____________ luck one after another.
| A．a sick | B．an ill | C．sick | D．ill |
If you ____________ stop smoking, you can only expect to have a bad cough.
| A．won’t | B．would not |
| C．do not | D．can not |
--Paul, I'd like to have a talk with you at tea break.
-- __________ Have what with me?
| A．Yes, please. | B．Sorry? |
| C．Thanks. | D．You're welcome. |
__________ some medals came to live in the sea is not known.
| A．Which | B．Since | C．Although | D．How |