Vocabulary test

Fill in the missing word...
  1. He has short arms but  [long] legs.
    long
  2. My book is for $5. It's cheap. His book is for $20. It's  [expensive] . 
    expensive
  3. Why are you so  [unhappy] ? What's the problem? 
    unhappy
  4. Our flat is very  [small] . Only one bedroom!
    small
  5. My wife is 20 years old. She is tall, blonde, and so  [beautiful, pretty] . 
    beautiful
  6. 12 =  [twelve] , 15 =  [fifteen] , 20 =  [twenty] 
  7. 13 =  [thirteen] , 17 =  [seventeen] , 19 =  [nineteen] 
  8. The homework is not easy. It is quite  [hard] .
    hard
  9. You have a  [wrong] number. Sorry.
    wrong
  10. My car is very old. I want to buy a  [new] one.
    new