You will never gain success ______ you are fully devoted to your work.
| A．when | B．because |
| C．unless | D．after |
It’s illegal for a public official to ask people for gifts or money ________ favors to them.
| A．in preference to | B．in place of |
| C．in agreement with | D．in exchange for |
--- It’s a shame that you missed the lecture on the British culture given by Thompson.
--- I _________ it, but I was busy preparing the coming exam.
| A．attended | B．had attended |
| C．would have attended | D．would attend |
Readers are required to _________ the rules of the library and mind their manners.
| A．observe | B．confirm |
| C．review | D．appreciate |
She would move quietly up to the sparrow on a small tree just to get a better look, her face __________ with childlike expressions at one of God’s simple wonders.
| A．shone | B．shining |
| C．having shone | D．being shone |
--- I haven’t got the reference book yet, but I will have a test on the subject next month.
--- Don’t worry. You ________ have it by Thursday.
| A．could | B．may | C．shall | D．must |