they often see the boy help the blind man改为同义句The boy --- often -_英语解答

they often see the boy help the blind man改为同义句The boy --- often --- --- ----- the blind man

人气：321 ℃　时间：2019-11-14 10:53:08

解答

The boy is often seen to help the blind man
see 是个感官动词,用在主动语态中用法是see sb do sth
用在被动语态中 to 要还原,变为 be seen to do sth