You will always travel by sea.错在哪里?

You will always travel by sea.错在哪里? will you travel by sea or air?和will you do travel by sea or will you travel by sea or air?和will do travel by sea or air? will you travel by sea or by air的意思! You will enjoy yourself if you travel by sea will you travel bay sea or by air 不是说情态动词不能单独作谓语吗?1:Will you travel by sea or by air?2:We may I will always stand by you am sure you will spend a good summer by this way.这句英语错在哪里了吗? Isn't it cheaper to travel by sea? because i will always stay with you by your I hope you will always by my side