按要求完成下列各句。

1. It's an old box.(改为一般疑问名)

_______ _______an old box?

2. It's an English car.(改为复数形式)

_______ _______English_______ .

3. These are rulers.( 用erasers改为选择疑问句)

_______these rulers_______ erasers?

4. I'm in Class 5.(划线部分提问)

_______class_______ _______ in?

5. Li Lei is thirteen.(划线部分提问)

_______ _______is Li Lei?