--I don't think we have met before.
--Yes, once at a party, but we___________.
| A．weren't introduced | B．didn't introduce |
| C．haven't introduced | D．were not introducing |
She is honest and trustworthy. I think It's ______no business of hers.
| A．absolutely | B．possibly | C．unfortunately | D．desparately |
At first driving requires a lot of concentration, but over time, it just becomes_____.
| A．authentic | B．available | C．automatic | D．awake |
---Don’t climb the ladder. It’s broken.
---______
| A．Why not？ | B．Don’t mention it. | C．OK. Thank you. | D．So what? |
The dangerous building could fall down any time, but that’s a risk we’ll have to_____.
| A．do | B．take | C．perform | D．make |
I need to buy a new MP4 and cellphone badly but I can’t afford_____.
| A．one | B．that | C．it | D．the one |