It means to stop whatever you are doing and go rest, go home, sleep.
Balthasar, Romeo's servant.
a similie uses the words like or as. So, I will use a similie.
I go through all of my classes at my pace, and jf I need any help, I ask the teacher for the class. For 4th period, my teacher lets us out 5 minutes before the lunch bell brings, so I head to the sandwich line behind the cafeteria, say Hi to my friend from band on the way, grab my lunch, and head to the library to eat and read. I like to eat their because it's quiet and no one goes there, it is pratically empty, like a deserted island. After lunch I go to the rest of my 2 classes, and walk home.
3. D
4. B
Hope this will help