Can you find any mistakes?

Today's task is to take a look at the following seven sentences.  Do they have any mistakes or are they correct?

What are the mistakes? Write the correct sentences in the comments area.

• 1 - I've always been interesting in English.
  
  OK
  Mistake
  
  
• 2 - Try not to loose your bag.
  
  Mistake
  OK
  
  
• 3 - This room is to cold to sleep in.
  
  Mistake
  OK
  
  
• 4 - She's more good at swimming than running.
  
  OK
  Mistake
  
  
• 5 - They've been waiting since 2 hours.
  
  OK
  Mistake
  
  
• 6 - Does your parents smoke?
  
  Mistake
  OK
  
  
• 7 - I like to make shopping on the weekend?
  
  OK
  Mistake