．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
I __________stop by sometime and thank her for all her help.
A．must B．would C．could D．ought
