Put the adjectives into the correct form 1) exercise 2 is ( difficult) than exercise 4 2) the 22nd of december is (short) day in the year 3) your cottage isn't as ( far) as i expected

1) Exercise 2 is more=если более (less=если менее) difficult than Exercise 4. 
2) The 22nd of December is the shortest day in the year. 
3) Your cottage isn't as  far as I expected