----- Where did you learn Greek? -----I didn’t. I just sort of _____ when I lived there.
| A．picked it out | B．made it out | C．made it up | D．picked it up |
--- Do you often feel anxious and uncomfortable?
--- No, but I __________.
| A．didn’t | B．used to be |
| C．used to | D．wasn’t |
Those _____ cannot answer all three riddles will be condemned to death.
| A．that | B．who |
| C．which | D．what |
Some people get in touch with each other by mobile phones__________ others keep contact with each other by e-mail.
| A．when | B．before | C．while | D．since |
It’s much easier to make friends ____ you have similar interests.
| A．unless | B．when |
| C．even though | D．so that |
I graduated from college twenty years ago and I ____________ as an English teacher in this middle school ever since.
| A．worked | B．have been working |
| C．had worked | D．was working |