按要求改写句子。
I have a pear. (改为一般疑问句)
have a pear?
I have some grapes. (改为一般疑问句)
you have grapes?
This is a mango. (改为复数句)
are .
I have some oranges. (改为单数句子)
I have .
I have three eggs. (对划线部分提问)
eggs do you have?