问题
选择题
He was seen ______ a letter in his bed room.
A．write
B．to write
C．written
D．wrote
答案
答案：B
感观动词see，后跟不带to的不定式see sb/sth do，被动形式需要加to，句意：他被看见在他的卧室写了一封信。所以选B。
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He was seen ______ a letter in his bed room.
A．write
B．to write
C．written
D．wrote
答案：B
感观动词see，后跟不带to的不定式see sb/sth do，被动形式需要加to，句意：他被看见在他的卧室写了一封信。所以选B。