12．She must take the medicine three times a day.

　　____ ____ ____ she take the medicine?

11．Three and four is seven.

　　____ is three and four?

10．The woman by the shop is our headteacher.

　　____ woman is your headteacher?

9．The watch cost about Three hundred and fifty yuan.

　____ ____ ____ the watch cost?

8．The Whites have gone to London by air.

　　____ ____ the Whites gone to London?

7．We shall borrow a dictionary from the library.

　　____ ____ you borrow from the library?

6．The first class begins at eight.

　　____ ____ ____ the first class ____ ?

5．Sam will help his aunt during the. surmmer holiday.

　　____ ____ Sam help his aunt?

4．Kate's bike is green.

　　____ ____ is Kate's bike?

3．Yang Guomei is on duty today.

　　____ is on duty today?