Their friendship broke ______ because they had a flight.
| A．of | B．down | C．away | D．off |
I really enjoyed your lecture , ______ there were some parts I didn’t quite understand.
| A．because | B．unless | C．though | D．after |
We all _____ the athlete of our country.
| A．take pride | B．are proud | C．take pride in | D．is proud of |
The dictionary mustn’t ________ from the library.
| A．take away |
| B．taken away |
| C．are taken away |
| D．be taken away |
You will not succeed ______ you work harder.
| A．if | B．when | C．unless | D．because. |