句型转换。

l. How much is the shirt? (改为同义句)

   ______ the ______ of the shirt?

2. These shoes are $17.(对画线部分提问)

   ______ ______ ______these shoes?

3. May I help you?(改为同义句)

    ______ I ______ you?

4. —This T-shirt is seven dollars.(对画线部分提问)

    —______ much ______ this T-shirt?

5. I'll buy it. (改为同义句)

    I'll ______ it.