------ What happened to you yesterday evening? Why didn’t you finish your work?
------____ the lights off, we could not continue our work. As a result, we had to leave.
| A．Until | B．Because | C．With | D．As |
相关试题
27. The experiment, _____ to test the theory, will be carried out tomorrow.
A. intendingB. intendedC. to intendD, having intended
26. Would you please speak ____ a loud voice? I didn’t catch what you said, with all the noise going on.
| A．in | B．on | C．of | D．To |
25. Only when I lost the opportunity to take my first job ____ how important it was to me.
A. I realized B. I had realized C, had 
I realized D . did I realize
24. _____ is known to us all is that to work hard to achieve a goal is more important than only to have a goal.
| A．What | B．As | C．it | D．This |
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