Present Perfect VS Past Simple

• - ... you ... (be) to America before?

• - No, this is my first time.

• - Did you know that Christopher Columbus ... (find) America?

• - Really? I never knew it was lost!

• - When you ... (sell) me this car this morning, you ... (say) it was trouble-free. Since then, the brakes .... (fail) and the door ... (fall) off.
  > Well, sir, I did sell you the car but the trouble was free!

• - Doctor, I ... (have) a sore stomach ever since I ... (eat) three crabs last week.
  > ... they ... (smell) bad when you ... (take) them out of their shells?
  - What do you mean - took them out of their shells?

• - Now, ... everyone ... (read) the chapter on Lord Nelson for homework?
  > Yes, sir.
  - Kevin, in which battle ... Lord Nelson ... (die)?
  > Er, his last one, sir?

• - I ... (buy) this diamond ring from a man in the street. It's for my girlfriend.
  > Are they real diamonds?
  - I hope so. If not, the man ... just ... (cheat) me out of £5.

• - How's your sister?
  > She ... (go) on a very strict diet to lose weight.
  - And how is she getting on?
  > Fine. She ... (disappear) last week.

• - Mrs Smith is very upset. She thinks she ... (lose) her cat.
  > When ... she last ... (see) it?
  - Four days ago.
  > Why doesn't she put an advertisement in the newspaper?

• - Don't be silly. Her cat can't read.

• - My dad ... never ... (visit) the dentist.
  > My dad will never go back to the dentist.
  - Why? What happened?
  > The dentist ... (take) all his teeth out.
  - What ... your dad ... (say)?
  > Never again! Never again!

Robert was fishing in a private lake. An old man came up to him and asked:
> ... you ... (catch) anything?
- Yes. Three big fish since I ... (start) this morning.
> My name is Lord Arton and I own this lake.
- Oh. My name is Robert and I'm a terrible liar!