1.(-)Steve doesn't like playing musical instruments.
(?) Does Steve like playing musical instruments?
2. (-) Tom is't interested in Nature studies.
(?) Is Tom interested in Nature studies?
3.(-) Emma and Sue are fond of sports.
(?) Are Emma and Sue not fond of sports?
4. (-) My parents don't like watching films in their free time.
(?) Do my parents like watching films in their free time?