C / I... If he had a car, he would arrive earlier.
Correct
How would you feel if you ____ (lose) your cellphone?
lost
C / I... What would you do if you see a famous person?
Incorrect
C / I... If I had bought that dress, I would have worn it to the party.
Correct
2nd / 3rd... If she could fly, she would go to France every week.
Second conditional
2nd / 3rd... If the teacher had arrived on time, we would have finished earlier.
Third conditional
2nd / 3rd... If we had read the review, we wouldn't have seen the movie.
Third conditional
2nd / 3rd... What would you buy if you had 1 million dollars?
Second conditional
If I had studied, I ____(get) a better grade.
would have gotten
C / I... If I were you, I be nicer.
Incorrect
If I ____ (have) a dog, I would be very happy.
had