REWRITE WITH (SO): He wants to go to bed earlier. He has more time to get ready in the morning.
He wants to go to bed earlier, so he has more time to get ready in the morning.
The deadline is today, __________ he didn’t finish his project yet.
but
REWRITE WITH (AND): I have to finish my science project. I have to study for my English exam today.
I have to finish my science project and study for my English exam today./I have to finish my science project, and I have to study for my English exam today.
REWRITE WITH (BUT): We want to make more friends. We feel really nervous when we talk to new people. (but)
We want to make more friends, but we feel really nervous when we talk to new people.
The final exam is tomorrow. __________________, she needs to study a lot tonight.
so / therefore
REWRITE WITH (OTHERWISE): You need to finish researching your topic tonight. You won’t finish the project before the deadline. (otherwise)
You need to finish researching your topic tonight. Otherwise, you won't finish the project before the deadline.
I’m not sure if I want to play a sport, _________ if I should join a study club.
or
REWRITE WITH (HOWEVER): She only has time to chat with her friends on social media. Her parents don’t let her use it often. (however)
She only has time to chat with her friends on social media. However, her parents don't let her use it often.