Planes will be very large so flying will be very cheap为什么Will 后面要用be?去掉不行吗?我一直很困扰,还有别的句子也有类似的,感激不尽（越详细越多分）

Planes will be very large so fiying will be very Planes will be very large soflying will be very cheap如何翻译 will planes very large so be will cheap be flying very 连词成句 planes will be very large so -------【fly】will be very cheap这道题这么做? f___in planes will be cheap 单项选择：Planes will be very large ___ flying will be very cheap.A.so B.and C.but Planes will be very cheap in the future（改为一般疑问句） planes will be very larg but flying will be very cheap?(改错)如题,我还可能有追问,答了追问有追加.我打错了：planes will be very large but flying will be very cheap.算了，我知道咋改了。planes will be very larg (but变so) 英语填空,planes will be very large so flying will be very ch___________.忘了说，顺便翻译下中文！o(∩_∩)o Planes will be very large so flying will be very cheap为什么Will 后面要用be?去掉不行吗?我一直很困扰,还有别的句子也有类似的,感激不尽（越详细越多分） im going to be a p（）because i like planes very sorry填什么谢 They'll have long holidays(改为否定句)We are going to use the sun to heat our rooms.No one will feel cold (改同义句)Planes will be very large so flying will be very cheap(改同义句) I will be very hard 英语翻译i will be very very appreciate. 连词成句much,more,planes,next,will,the,10,in,there,be,years Will flying in planes be expensive or cheap?这句话是什么意思呢? I think the planes in the future will be much large and_____a lot of peopleAtake Bput Cget Dcarry 英语连词成句twice number planes next will the of 10 in there be years the