Should have, Could have and Would have

Kai's parents __________ helped him with some of his college tuition if he had asked. They have plenty of money.

Chris __________ been an English major. He complains about the books he has to read and the papers he has to write.

The students __________ written longer essays, but the teacher said 10 pages was long enough.

You told Mr. Coleman that you thought the test was unfair? Why? You __________ have done that.

Raul did not do well on the test. He __________ studied for it.

Bob __________ wanted to go on the trip anyway. He doesn't like camping.

Adam __________ asked his roommate for help with his homework if he had known his friend was busy.

I __________ driven you home from school. I didn't know that you needed a ride.

Kelly __________ lived alone this semester. She chose to have roommates because she likes to be with other people.

The quiz was a surprise. We __________ studied for it.