Answer:
1. He had a sleepless night, so he keep dozing off during class.
2. The ocean is polluted for there is too much waste.
3. He ranked number one, for he had reviewed hard for his exams.
4. She paracticed for the contest, so she won.
5. He went out during lockdown, so he got infected.
Explanation:
Yan lang po. . . paki check nlang kung may wrong
