Which sentence is correct?

Something that can really help you to see if you have understood a rule in English, or remembered some vocabulary, is to see if you can spot mistakes.

In each pair of sentences there is one correct sentence. Can you work out which is the correct version?
By Caroline Devane

• Question 1:
  
  I studied ballet since I was a child.
  I've studied ballet since I was a child.
  
  
• Question 2:
  
  I was reading my book when the door rang.
  I read my book when the door rang.
  
  
• Question 3:
  
  I really enjoy going to the gym, it relaxes me.
  I really enjoy to go to the gym, it relaxes me.
  
  
• Question 4:
  
  She has to go to school.
  She have to go to school.
  
  
• Question 5:
  
  Please will you turn up the volume?
  Please will you turn out the volume?
  
  
• Question 6:
  
  Have you ever been to Spain?
  Did you ever go to Spain?
  
  
• Question 7:
  
  I brush my teeth always in the morning.
  I always brush my teeth in the morning.
  
  
• Question 8:
  
  Take an umbrella, it's raining cats and dogs!
  Take an umbrella, it's raining lions and tigers!
  
  
• Question 9:
  
  I don't like either.
  I don't like neither.
  
  
• Question 10:
  
  I brought some carrots and broccoli at the supermarket for dinner tonight.
  I bought some carrots and broccoli at the supermarket for dinner tonight.