34. I SHOULD HAVE STUDIED LAST NIGHT, BUT I WAS TOO TIRED.A. I COU...

29.

34. I should have studied last night, but I was too tired.

A. I couldn't study last night because I was very tired.

B. I studied last night because I was bored.

C. I studied last night because I had to.

D. I tried to study last night, but the homework was too hard.