Many people think that it's (comfortable)to travel by train

Many people think that it's (comfortable)to travel by train \,Most people think it's more comfortable to travel by air t It's to travel by plane than by train.(quick) 00 Many people like to travel by air,___Jim's family think t I su____ that we travel by train.It's convenient. It's best____(travel)by train It's comfortable for us to travel by plane.的同义句 I think it is safer to travel by train 为什么用safer Many people like to travel by plane Many people like to travel by ____. To travel by train is much more comfortable and enjoyable.同义 改同义句 To travel by train is much more comfortable and enjoyab