Вставьте модальные глаголы should или must.
1) a)You__have studied the material thoroughly. I see you have made no mistakes in the test-paper.
b)You__have studied the material thoroughly. Then would not have made so many mistakes.
2) a)She__have followed the doctor"s advice. She would have recovered by now.
b) She__have followed the doctor"s advice. She looks very fine.
3) a)You__have ignored the instructions of your sports coach. That s why you lost the game.
b)You__have ignored the instructions of your sports coach. Then you would have won the game.