They're not far off although these are more grammatically correct:
1) It took me a long time to drive home from work because there was a large amount of traffic.
2)This sentence is fine.
3) It's time to go to bed as I have an early start tomorrow
Hope that helps
0 voted
September 4, 2015
0
Answered
I assume you meant although and though.
This link should explain everything:
http://grammarist.com/usage/although-though/