按要求变换句型。

1. The boy eats junk food three times a week.  (就划线部分提问) 

    _______ _______ does the boy eat junk food?

2. Mike always watches TV on school night.    (变为否定句) 

    Mike _______ _______ TV on school night.

3. The students are playing soccer in the park. (就划线部分提问)

    What _______ the students _______ in the park?

4. John did his homework last night.  (变为否定句)

    John _______ _______ his homework last night.

5. There's some milk in the glass.  (变为一般凝问句)

    _______ there _______ milk in the glass?