Thanh was angry so we didn't say anything to her

34. Thanh was angry so we didn't say anything to her
- If Thanh......
35. Our teacher didn't come so we canceled the party
- If our teacher.......
36. Quang was interested in the film so he didn't study his lesson
- If Quang..........
37, I had a bad headache yesterday so I didn't go to school
- If I...........