句型转换。

1. Let's have dinner. (改为否定句)

    Let's_____ ______dinner.

2. What can I do for you?(同义句)

    Can I ______ ______?

3. Those are rulers. (改为单数形式)

    ______ is a ______.

4. His brother has a computer. (改为一般疑问句)

     ________his brother a computer?

5. Your ID card is on the dresser. (对划线部分提问)

    ______ is ______ ID card?

渗透率贡献值