The news came as no surprise to me. I _____ for some time that the factory was going to shut down.
| A．knew | B．had known |
| C．have known | D．know |
At school，some students are active ________ some are shy，yet they can be good friends with one another. (2012·四川，4)
| A．while | B．although |
| C．so | D．as |
I had hardly got to the office________my wife phoned me to go back home at once.
(2012·大纲全国Ⅱ，11)
| A．when | B．than |
| C．until | D．after |
—Coach，can I continue with the training?
—Sorry，you can’t________you haven’t recovered from the knee injury.(2012·重庆，30)
| A．until | B．before |
| C．as | D．unless |
________hard you try，it is difficult to lose weight without cutting down the amount you eat. (2012·湖南，32)
| A．However | B．Whatever |
| C．Whichever | D．Whenever |
Everything was placed exactly________he wanted it for the graduation ceremony.
(2012·天津，14)
| A．while | B．when |
| C．where | D．though |