A means the same thing as the English words under the Chinese definition
B means it usually sleeps for 15 minutes at night
C he goes to bed at 10:15 at night
D means he usually goes to be at 10:15 at night
Translation:
If all you're bored and you are interested, change your daily routine. something I do not like are no videogames and, luckily, my boyfriend likes them to.