新概念第四课里面Is this your son?回答应该是yes it is还是yes he is什麽时候用yes it is回答?这个都说是儿子了为什麽还用yes it is

新概念第四课里面Is this your son?回答应该是yes it is还是yes he is什麽时候用yes it is回答?这个都说是儿子了为什麽还用yes it is This is her car , ( )is a French car. This is his car ,( ) is a German car. 新概念的第四课的填空,怎么填,翻译过来后是什么? only one of these statements is true 新概念二册 第四课 理解选择提里面的 看不懂! 【英文翻译】is this it?这句话什么意思?新概念英语里面的.这句话什么意思? 在新概念英语第四课中,so he is finding this trip very exciting.为什么用现在式is,这里不是用过去式吧?那句话写为so he finds this trip very exciting,可以不? 新概念二第四课的 为什么新概念英语第一册lesson2没有课文啊?新概念英语第一册的第二课is this your...怎么没有课文?也没有译文跟第一课不一样啊? is this your skirt this is your Maybe this is your Is this your uncle? this is your aunt. is this your business Is this your schoolbag? Is this your (空格) Is this your schoolbag? this is your pencil Is this your cake.