句型转换。

1. Mary's birthday is October eleventh.(对画线部分提问)

     __________ __________ Mary's birthday?

2. These sweaters are yellow.(改为单数形式)

     __________ __________ __________ yellow.

3. We have an Art Festival each year.(对画线部分提问)

       __________ __________ __________ you have each year?

4. —Is your school trip on June 1st?(作肯定回答)

    —Yes, __________ __________.

5.—Is your sister thirteen years old?(作否定回答)

   —No, __________ __________.