there are many boys and girls on the playground.改为否定和疑问
题目
there are many boys and girls on the playground.改为否定和疑问
答案
there are many boys and girls on the playground.改为否定和疑问there aren't many boys and girls on the playground.Are there many boys and girls on the playground?
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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