Please remind me _______ he said he was going. I may be in time to see him off.
| A．where | B．when | C．how | D．what |
The possibility of a way out of the impasse(僵局) had never ____________ to anyone.
| A．happened | B．occurred | C．appeared | D．flashed |
I appreciated ____ the opportunity to study abroad two years ago.
| A．having been given | B．having given | C．to have been given | D．to have given |
_______, I’d have told you.
| A． If I would have known | B． If I had have known |
| C． Had I known | D． Should I know |
20. He reads newspapers every day to keep himself_______about what's going on in the world.
| A．inform | B．informing | C．informed | D．being informed |
We_______such great progress without your efforts. Thanks a lot.
| A．shouldn’t have made | B．couldn’t have made |
| C．were unable to make | D．mustn’t have made |