If I am free this evening ,I ▁（help）you with your maths

If I am free this evening ,I ▁（help）you with your maths IF I am free this afternoon,I'll clean the sitting room对后面四个单词提问______will you____ if you are free this afternoon I don't know _____ I am free this afternoon.A whether B if 选哪个?为什么 I am here if you are free 怎么理解 怎样把I am free this afternoon改为一般疑问句 I am free this aftenoon改为一般疑问句 连词成句：free,evening,not,I,this,am(.) i am busy cooking now. i ____until this evening A will be free B won't be free C am free D am not free选什么? 为什么? I'm going to the party___（hold)at Simith's home this evening if i am free.为什么要用to be held? I am free tonight —I want to know if you __ to the meeting this afternoon.——I will if I __ free.A.will come;am B.come ;am C.will come;will be D.come;will be I have to finish the report.If I ______ tomorrow,I would help you.A should be free B am free C will be free D is free 变同义句（英语）I am free this Sunday afternoon (同义句)I am free this Sunday afternoon (同义句)=I ____free_____ this Sunday afternoon free,i,see,tonight,will,to,you,if,i,go,am 连词成句 I’ll go swimming with you if I( ) free tomorrow为什么填am却不填will be i will (help the old man) if i am free 对括号部分 提问 I'll go shopping if I am free.(虚拟语气） I am not toy!I am free!