They selected Tom,____ they liked ,as captain .为什么要用whom

They selected Tom,____ they liked ,as captain .为什么要用whom They selected Tom,( ) they liked,as caption.括号里填可以什么关系代词?whom可不可以？ they selected Tom head of their workshop请问：这句话是什么意思?head of是什么意思?head什么词性?selected Tom 后面不需要用一个“当、作为”之意的动词吗? They selected Tom,________ they liked,as captain.A.which B.that C.who D.whom为什么选D,C不行吗 Tom has a basketball,(用they)改写句子.they__ __ __. __(be)they busy today Tom and Amy__(be)good students.We all like__(they) 补全对话：A：Are they __?B ：No.they are Tom's. Tom bought the coat yesterday.同义句转换tom __ __ the coat __ __ __ They ware all delighted at the news __ Tom won the First Prize.They ware all delighted at the news __ Tom won the First Prize.A.when B,whichD,that选什么?为什么? __+they+like___+homework? What __ they __ they __(do) there? Tom还没有收到她的信. Tom __ __ a letter from her __.Tom还没有收到她的信.Tom __ __ a letter from her __. 英语翻译汤姆正在给那只老虎拍照Tom __ __ __ __ __ the tiger Tom was very proud 对very proud进行提问 __ __ __ __was tom? Tom is ten.Kate is eleven.合并为一句话Kate is __ __ __ than Tom. We buy books from Tom同意句Tom __ books __ __. They were playing chess happily.（改为感叹句）__ __ __ __ __ __! 英文题I'd like __(be)your good friend.Tom __(have)a birthday party at home.填词 英文题I'd like __(be)your good friend.填词 英文题 Tom __(have)a birthday party at home.改错 They usually write homework at home _________