Present Perfect Exercise 1

Thomas ___________ (study) English since 2006.
1. have study
2. have studied
3. has studied
Mrs. Gerhauser ____________ (see) the movie "Casablanca" over twenty-five times.
1. seen
2. has seen
3. has saw
We _____________ (invite) twenty kids to the birthday party last year.
1. invited
2. have invited
3. were invited