I went to Australia in 1999.

What time have you eaten lunch?

Who has bought this cake? It's horrible!

Have you seen Tara yesterday?

Have you listened to the CD that I gave you?

Who has eaten my cookie at breakfast?

Steven has made a movie. It is really good!

Did you play the new Nintendo™ game at the party?

Hello! I didn't see you since January!

Have you done your homework yet?