Réponse :a.

b. If I was you, I’d leave.

c. How would you feel if you lived on Mars

d. If I was you, I’d buy a bike.

e. what would you do if you were rich?

f. What were you doing?

g. If I were you, I’d take the bus

h. What would you do if you owned a Robot.

b. would have taken/ had felt  

c. had driven: wouldn’t have crashed

d. had come/ would have…

e. I’d known/ I would have sent…

f. had helped/might be

g. had scored/could have

h. would have worn/ wouldn’t

b. if I had bought more milk, I would have enough…

c. If we had taken nap, we wouldn’t have lost…

d. If I had gone to bed early, I would have woken up…

e. If Mike had made the shopping list, he wouldn’t have forgotten to buy…

f. If I had realized you were tired, I wouldn’t have asked you for a walk

g. If the romans had crossed the Atlantic, they might have reached America.

h. If I hadn’t turned left at the station, I might not have lost my way.