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The singer became famous in the early 1980s, ______ the classical music was better than pop music.
| A．which | B．when | C．that | D．where |
．At last, the boys found themselves in a pleasant park with trees providing shade and__________down to eat their picnic lunch
| A．to sit | B．sat | C．sitting | D．having sat |
Most of __________we call geniuses (天才)are successful only because they have made extraordinary efforts.
| A．whom | B．who | C． what | D．which |
—Did you get my letter?
—I received one just as I__________.
| A．set out | B．had set out | C．was setting out | D．would set out |
When she called at his studio, she__________that he had gone to Japan.
| A．is told | B．was told | C．tells | D．told |
Robert made a call to his parents yesterday afternoon. To his disappointment, __________of them answered it.
| A．either | B．both | C．none | D．neither |