I saw him dancing.改为被动语态

I saw him dancing.改为被动语态 i saw him yesterday改为否定句 i saw him dancing和i saw him to dance 意思有不同吗?句子语法有错吗? I saw him singing in the room.改为被动句 I often saw him dance in the park in the evening.为什么是用dance,而不是用dancing呢? 1.The boy has ___ translating the sentence into Chinese .Please help him.A.matter B.question C.problems D.trouble2.I saw your sister was dancing when I passed.改为同义句 I saw ___ ___ ___ when I passed _________________________初中英语He was planting the tree when I saw him.改为一般疑问句 I saw him near my home a week ago.这句话怎样改为一般疑问句 I am dancing.改为一般疑问句 I am dancing.改为否定句 填介词I saw many people dancing ( ) the tree I saw her dancing yesterday.的被动态,应用She was seen dancing...还是to dance? this is the man_____last nightAwhom I saw him Bwho I saw Cwhich I saw Dwho I saw him we saw the girl dancing around the corner 把中间的Dancing 改为一个两个词的短语怎么改 i saw him ____(walk)into the I saw him go out just now. I saw him ____ into that room. I saw him in the street是什么意思