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2011-09-10 22:13:41

• He was seen to run into the classrom (by us).
  see,hear...这类用于主动语态时后接动词原形即用于A see\hear B do sth.结构的词，再变为被动语态时，后便要加上to，即变成B be seen\heart to do sth.(by A)

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  2011-09-10 22:13:41

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2011-09-09 08:12:53

• He was seen by us ran into the classroom

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  2011-09-09 08:12:53

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2011-08-29 19:49:27

• He was seen to run into the classroom by us.

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  2011-08-29 19:49:27

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2011-08-28 17:36:45

• He was seen to run into the classroom

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  2011-08-28 17:36:45

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