定语从句：my brother has become good friends with several of the students in the school ___...we called at the beginning of the term.定语从句填空：who,where,when,which,答案是which,为什么不可以是who?who=whom,为什么不可以是

My brother,______ i have not seen for a year,has just returned to Beijing.A.whoB.whichC.whom非限制性定语从句中可不可以用whom? .The man is my brother .The man is teiephoning.the man who ____ is my brother.该成定语从句 The boy is my brother.The boy stands in front of the house.改成定语从句 The man is my brother.He is standing under the tree.用定语从句修改 you met the boy here yesterday；he is my brother改为定语从句 the boy with a ball in his hand is my brother改为定语从句 The ball is my brother's.The ball is under the bad,改成定语从句 is,the room,my brother where,put his dog,his 连成定语从句! my brother likes the movies.they are very funny改为定语从句 The dictionary is my favourate .My sister has spoiledits cover改定语从句 有几道英语定语从句的不懂选呢.1.Janet,_____ is in my class,is atalented singer and dancer.a.the brother of hers b.the brother of whomc.her brother d.whose brother2.The company has developed a newlaptop computer ____ will make it attracti 定语从句：my brother has become good friends with several of the students in the school ___...we called at the beginning of the term.定语从句填空：who,where,when,which,答案是which,为什么不可以是who?who=whom,为什么不可以是 定语从句判断The boy is my brother who is standing at the door.The boy who is standing at the door is my brother.这两句都是正确的吗?第二句式定语从句吗?如果不对错在哪里? my brother has blue trousers My uncle has a farm.Many children play in the farm.合并成定语从句 用定语从句改写句子 The CD is a present for my brother.I bought it yesterday. 关于定语从句填空Do you know the boss in__department my brother works?（看起来这么奇怪呢?填什么? It was my brother that/who organized the party last night.这句话是强调句还是定语从句?