The theory _____ by Einstein was later to prove true, but at that time few people could accept it .
| A．put out | B．put together | C．put aside | D．put forward |
_______ that he might lose his job, Peter always works extra hours to please his boss.
| A．Worrying | B．Having worried | C．Having been worried | D．Worried |
—Why are you so depressed?
—I _____ my MP4 player on the bus．
| A．had lost | B．am lost | C．have lost | D．was lost |
Tired and disappointed, the rescue team finally reached _____ used to be a village．
| A．where | B．that | C．when | D．what |
Noise is unpleasant, _____ when you are trying to sleep．
| A．especially | B．specially |
| C．extremely | D．naturally |
So hard-working _____ that he sets a good example to all the other classmates．
| A．he is | B．is he | C．does he | D．he does |