An American scientist reported an unexpected and __________ discovery.
| A．astonishing | B．astonished |
| C．astonish | D．astonishment |
We were required not to any important details before it was made public.
| A．try out | B．make out | C．let out | D．break out |
— I think I’m going to die. — , Joe. You only have a cold.
| A．Don’t mention it | B．Take it easy | C．It’s hard to say | D．Take care |
, I got better and returned to work.
| A．Accidently | B．Normally | C．Eventually | D．Particularly |
Had it not been for the police’s help, Peter his bicycle yesterday afternoon.
| A．could not find | B．didn’t find | C．could not have found | D．hadn’t found |
John is not very — he often forgets what he promises to do.
| A．flexible | B．reliable | C．confident | D．honest |