Ask and answer the question about ( )为什么这个空要填what he likes 而不能填what does he like
问题描述：
Ask and answer the question about ( )为什么这个空要填what he likes 而不能填what does he like
答
因为what he likes是一个从句
从句一定不能用一般疑问句、一定要用陈述语序
答
这是一个从句（用简单的话告诉你,就是把两个句子组成一个句子）,后半句要用陈述句的语序.