Unit2

1.be-was/were-been
  do-did-done
  go-went-gone
  see-saw-seen
  drink-drank-drunk
  sing-sang-sung
  drive-drove-driven
  write-wrote-written
  eat-ate-eaten
  give-gave-given
  tall-tell-tallen
  take-took-taken
  break-broke-broken
  choose-chose-chosen
  speak-spoke-spoken
  wake-woke-woken
  get-got-gotten
  forget-forgot-forget
2.find-found-found
   have-had-had
   hear-heard-heard
   keep-kept-kept
   make-made-made
   meet-met-met
   say-said-said
   sell-sold-sold
   sit-sat-sat
   tell-told-told
3.become-became-become
   come-came-come
   run-ran-run
   cut-cut-cut
   hurt-hurt-hurt
   put-put-put
4.I have never seen African jungle forest
  I have never ridden African camel
  I have never travelled in Asian country
  I have never gone to Uvurhangai aimag .This aimag is famous for beautiful natural places, historical Erdede-zuu monastrxy, race fast horses and wrestlers.
  I have never ridden a camel. So I want to ride a camel.
  I have never gone to abroad. I think, After I graduate university, I will go foreign country such as Japan, America or Korean
  I have never driven a car.
  I have never seen an elephant and whale
  I have never been met president of Mongolia.
  I have never played a golf
  I have never eaten seafood
  I have never speak English. Because I can't speak English fluently.
  I have never been horse riding
  I've never been dancing
  I have never ever swim
  I have never ever speak Spanish
  I will never eat meat. Because I am a vegetarian