1 I had to use the stairs. I was exhausted.
= Because
2There was a lot of mismanagement. We managed to complete the task on time.
= Despite
3I work really hard. My parents are never pleased with my grades.
= Despite
4She brushes her teeth regularly. She has a lot of cavity problems.
= But
5She is very beautiful. We all hate her.
= In spite of
6He slept deeply. The children outside were making noise.
= However
7She can hardly manage. She helps the poor family in her building.
= Since
8,We rarely meet. We are neighbors.
= Thought