I have（ many toys）对括号部分提问如下：
How many toys do you have? 你有多少玩具呢？
many toys很多玩具，作动词have的宾语，所以提问时用疑问代词what，同时主语I变成YouWhat do you have?
Do you have many toys ?
I have（ many toys）对括号部分提问，如下：What do you have?
