_____ several times, he still could not make sense of it. [..

_____ several times, he still could not make sense of it. [ ]A. Having been told B. Told C. I le was told D. Being told

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One learns a language by making mistakes and ________them.[..

One learns a language by making mistakes and ________them.[ ]A. correctsB. correctC. to correctD. correcting

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_____ around the Water Cube, we were then taken to see the B..

_____ around the Water Cube, we were then taken to see the Bird's Nest for the 2008 Olympic Games.[ ]A. Having shown B. To be shown C. Having been shown D. To show

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_______such heavy pollution already, it may now be too late ..

_______such heavy pollution already, it may now be too late to clean up the river.[ ]A. Having sufferedB. SufferingC. To sufferD. Suffered

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He looked around and caught a man _____ his hand into the po..

He looked around and caught a man _____ his hand into the pocket of a passenger.A.putB.to be putC.to putD.putting

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