I saw him （walk）in the room.walk为什么要用原型呢?walk 在这里还能算是名词吗?同学说只是因为一个句子只能有一个时态,前面已经是过去式了,后面的就不用管了但是我看到他正在屋里走为什么是I

i saw him ____(walk)into the i saw him walk into the next room被动语态 I saw him in the street是什么意思 I saw him (walk)into the computer house this morning.中walk怎么填空 I saw him yesterday afternoon=I saw him in the afternoon yesterday吗 I saw him （walk）in the room.walk为什么要用原型呢?walk 在这里还能算是名词吗?同学说只是因为一个句子只能有一个时态,前面已经是过去式了,后面的就不用管了但是我看到他正在屋里走为什么是I 被动语态练习题I saw him walk into the next room. John ( ) be in the classroom because I saw him in the library just now.A.mustn't B.isn't able to C.can't D.may not As I —— —— （walk）in the park,I saw some children playing games 有一题.i saw him --- （sleep） in bedlook ou of 的意思。 I saw him ______(come)in a moment I saw him singing in the room.改为被动句 I saw my friend when I (walk)in the street.(现在完成时)用适当的形式填空I saw my friend when I (walk)in the street.(现在完成时) He can't be in the classroom,I saw him go home a minute ago 我想问一下问什么不能用mustn't而用can't? He have gone to the net bar,for I saw him in the classroom just now.A mustn’t B can’t C may not D might not 用所给词的适当形式填空 i saw him (wash) his face and (walk) away I saw the ____（happy）from his face and tried to cheer him up in my own way. I saw my teacher when I_(walk)in the street填什么?为什么?