1. The girl often listens to pop music.
+ The girl doesn't often listen to pop music.
? Does The girl often listen to pop music?
2. + I am not from the capital of Vietnam, Ha Noi.
? Are you from the capital of Vietnam, Ha Noi?
3. My father keeps the greenhouse warm at night.
? Does my father keep the greenhouse warm at night?
4. +  Danny remembers to phone his father on Sundays
-  Danny does not remember to phone his father on Sundays