I _have been _ (be) in class for 2 hours today,这个句子对吗,在have been后是否需加be,原因

I _have been _ (be) in class for 2 hours today,这个句子对吗,在have been后是否需加be,原因 _have you ever been to Rome?_ No.but that is the city __________.A.which i like to visit most B.i'd most like to visit 为什么不能选A呢?那visit 做及物动词没有宾语啊？怎么可以用where?most不可以做宾语吧？ I have been playing the piano since I _(be) 6 years old.填was,been,还是其他的什么? 你喜欢上什么课?_ _ do you _ _have?(根据汉语意思完成句子) The environment will be well _ _ _(protect) by people.The people _ _ _ （live）in these houses were mostly old workers.I've finished _ _ _ (draw) the picture.另外 Her shoes have been worn out quickly.是被动语态吗?意思是；她的鞋子磨 I'd like _ (be) your friend. I hope _(be) a teacher. i know you think i am talking nonsense,Dick,but in time,_.A you would realize that i had been ...i know you think i am talking nonsense,Dick,but in time,_.A you would realize that i had been right B you will realize that i was right C you will be rea I am satisfied _ should be done has been already done.A.what that B.what C.that what Dthat,选什么? I have been collecting shells for three tear and a half同义句转换I have been collecting shells for _ _ _ _. I will be late for supper.同义句：I will _ _ _ supper. _Have promised you will not leave,I would not leave.Please believe me___ _have i seen a better performance填nowhere 还是nowhere else 有什么区别吗? All I wanted to be was a singer.同义句 _ _ _ _ Ｉwanted to be. ①_Have you___ some new ideas?_.Yeah.I’ll tell you later.A.come about B.come into C.come up with D.come out with答案是C,理由②The journey around the world took the old sailor 9 months,_the sailing time was 226 days.A.of which B.during which we want to know when we should have a meeting.转换成：we want to know _ _ _have a meeting. I study hard because I want to be a doctor.(用so改写)I want to be a doctor_ _ _ _.His dudy is to design a computer program.=_ _ _ _ _designa computer program. I used to be really quiet.(改为一般疑问句,给出肯定回答) _ _ _ to be really quiet