who is standing under the tree?A Tom is B Tom does

---Who's the man ---which man?The one(is standing,standing)in front.选哪个 The boy who is standing at the door is my brother.who is 可以省略吗 The boy who is standing there is tom中who作主语是不是? 为什么The lady who is standing behind the counter.不能改成The lady which is standing behind the cou ( )is the boy who is standing there?My b( )is the boy who is standing there?My brother.请问这个空格填什么? The man who is standing there.可不可以改成The man who stand there. [the lady who is standing behind the counter.]怎么理解这个句子?特别是who 选择;---Who is the girl standing over there?---Who is the girl standing over there?---Well ,if you ____ know,her name is Joe.A.mustB.may Who's the girl[ ] [ ]the sun A;is standing,under B;standing,under C;standing,in D; stood,below 必须有理由 Unde Bill is birthday is in June too “The lady is standing”与“The lady who is standing”两句一样吗?为什么?第二句中的who应该翻译成什么? who is standing under the tree?A Tom is B Tom does Who is the person that is standing at the school gate?这句话的意思? The boy ___ is standing there is my brother.为什么答案选WHO 不用THAT Who is the person ____ is standing at the gate?为什么 英语翻译恩..这个对么?Who is the man that is standing here? The boy is my brother.The boy is standing at the door.合并:The boy who is standing at the door isThe boy is my brother.The boy is standing at the door.合并:The boy who is standing at the door is my brother.省略：The boy standing at the door is 有句：“who served you the man standing behind the counter.”我想,如果用关系代词是用who,但是应该是“who served you the man who is standing behind the counter.”为什么省略了who与is?