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?
