A pair of...

'A pair of...?'

A pair of is used with two things that look the same, are the same size and are meant to be used together.

Example:
A pair of shoes
A pair of pajamas
A pair of gloves

We also use a pair of for something that is made of two items joined together

Example:
A pair of glasses
A pair of scissors
A pair of trousers

Note: A pair of is always followed by a plural noun. E.g. 'A pair of gloves', NOT 'A pair of glove'.

Link: Adverbs of time

• In cold weather you wear a pair of ___ on your hands.
  
  scissors
  trousers
  gloves
  shoes
  pajamas
  glasses
  stockings
  
  
• To help you see you wear a pair of ___.
  
  shoes
  trousers
  pajamas
  scissors
  stockings
  glasses
  gloves
  
  
• A woman might wear a pair of ___ under her skirt.
  
  shoes
  trousers
  pajamas
  stockings
  glasses
  gloves
  scissors
  
  
• Instead of jeans you can wear a pair of ___.
  
  trousers
  pajamas
  scissors
  glasses
  shoes
  stockings
  gloves
  
  
• On your feet you wear a pair of ___.
  
  scissors
  shoes
  stockings
  trousers
  pajamas
  gloves
  glasses
  
  
• You wear a pair of ___ to bed.
  
  gloves
  glasses
  trousers
  shoes
  stockings
  scissors
  pajamas
  
  
• To cut paper you use a pair of ___.
  
  glasses
  scissors
  pajamas
  trousers
  gloves
  stockings
  shoes