I saw our math teacher talking with John when I _____ (pass) his office.请问这个地方为什么不填passing而是passed呢?

I saw our math teacher go into the office just now.{改为被动语态} 填空：Our math teacher ____(teach) us very well. I (s )teach you math instead of her(将要) I saw our math teacher talking with John when I _____ (pass) his office.请问这个地方为什么不填passing而是passed呢? ( )( )he( he teach math. Does Jack teach Chinese or math.A.their B.youC.our D.swimming I want to be a teach of math 还是I want to be a teacher of math?为什么? teach one's math还是teach sb math? Does she teach you math? I saw saw saw our math teach is very young.准确来说是our math teach is very young.He'sshort and thin.He'svery funny.We all like him.Who is he? Does she teach math?[做否定回答] Does she teach math?变为陈述句 Who ( ) you math A.Teaches B.Teach teach us music 还是teach our music? i saw a saw saw a saw. Does she teach you math?与Does she teach your math?有什么不一样? we need a math teacher( )math A.to teach B.teach C.teaching D.teaches