Let them join us中,为什么them要用宾格不能用“they”?是专家的,讲详细一点,我需要这部分的语法知识.

Let them join us中,为什么them要用宾格不能用“they”?是专家的,讲详细一点,我需要这部分的语法知识. Shall we____the meeting?Sure.Let's____ them.A.join in,join inB.join,joinC.join,join in D.join,join let's go and join them.的汉语意思是什么 英语翻译Time for them to join us,or go away. I hope __(them to,they can )join us he asked us to join them改为否定he asked us _____ _____join them -Shall we __ the dancing?-Good idea.Let's __ them.为什么填join in；join 同义句转换：Let us take them to the classroom.格式为：()() taking them to the restaurant Will you join us?中Will表【?】 Shall we ___ this singing?---That's a good idea.Let's ____ them.( )A.join in,join in B.join,join C.join in,join D.join,join in 反意疑问句中为什么是Let's,shall we/Let us, will you?不是Let's=Let us么?为什么逗号后面的不一样? .Let them help us with English为什么用help Let us (wish) them success.用适当的形式 let us wish them success!中的success为什么不用successsful? 英语翻译They are kick a ball Let's go and join them. some of girls are talking ( )Harry potter .let's join them.括号里填介词 let's _______ them _______ the dancing,shall we?join ;to B.take part in;for C .join ; in D .join ; with go and join them.