whom is he waiting for还是who is he waiting

whom is he waiting for还是who is he waiting whom is he waiting for?插入子句请看下 ___ is he waiting for Who is he waiting for two hours.改错 is he for who waiting (连词成句) Who is he waiting ___?Jenny. who is he waiting （介词）? Who is she waiting for? 合并成一句Is he worry or right?I don`t konw who is waiting for yo 改错；look who is they waiting for?He is talk to the doctor at He is waiting with a___heart who do you think he is waiting for?中do you think 何成分