The student sat there, __________ what to do. [ ]A. doesn’t knowing

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The student sat there, __________ what to do. [ ]

A. doesn’t knowing
B. didn’t knowing
C. not know
D. not knowing

答案

举一反三

The secretary worked late into the night, ___________ a long speech for the international conference.
[     ]
A. to prepare
B. prepared
C. preparing
D. was preparing

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European football is played in 80 countries, __________ it the most popular sport in the world.  [     ]
A. making
B. makes
C. made
D. to make

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In his talk, the____ Prime Minister expressed his satisfaction, ____ that he had enjoyed his stay here.      [     ]
A. visiting, add
B. visited, adding
C. visiting, adding
D. visited, added

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The missing boys were last seen ______ near the river.[ ]
A. playing
B. to play
C. play
D. to be playing

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The lazy boy ______in bed, ______he was ill.[ ]
A. lied; lying
B. lay; lying
C. laying; lying
D. lain; laying

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