分类：教育/科学-学习帮助
问题：填空Whydon'tyoulearntosingEnglishs 
Why don't you learn to sing  songs?(改为同义句）________ _______ learn to sing English songs?________ ________ learning to sing Engilsh songs?A horse can run faster than an elephant, can't it?(根据实际情况回答）________,______ __________
回答：1. Why not
How/ what about
2. Yes，it can.