Section 1
1. Her resignation letter — I had no idea she was unhappy.
2. That documentary about the ocean really long after it ended.
3. It took him years to losing his childhood home.
4. Some students struggle to how gravity actually works.
5. After the breakup, he kept his old friends at arm's length for almost a year .
6. He'd been bottling up his feelings about work for months before he finally snapped .
Section 2
7. A small comment at dinner a huge family argument.
8. The teacher quickly the tension between the two students.
9. He passed the exam without studying much, which just how naturally talented he is.
10. The firefighters were to pull people from the burning building.
11. The speech about climate change really for the students.
12. Losing the championship in the final seconds was a real for the whole team.
Section 3
13. Instead of ignoring the issue, she decided on dealing with it head-on .
14. His final sentence really sums up the whole argument of the essay .
15. Older siblings often their younger brothers and sisters.