大家好，我是小跳，我来为大家解答以上问题。why don't的同义句转换，同义句转换很多人还不知道，现在让我们一起来看看吧！

1、同义句转换 1. How big the building is！ 同义句转换: What (a big building)！ 括号部分提问： 1. It took me (20 minutes) to do my homework. How long did it take you to do your homework? 2.（She）runs very fast. Who runs very fast? 3. I like （the big） cake. Which cake do you like? 写出错误并改正： 1.They dancing and singing together at the party. 单独的现在分词不能做句子的谓语。

2、 改成：They are dancing and singing together at the party. 或：They were dancing and singing together at the party. 或：They danced and sang together at the party. 2.The families live together happy. happy是形容词，不能修饰动词。

3、 改成：The families live together happily.。

本文到此讲解完毕了，希望对大家有帮助。