Some sentences

Please, feel free to correct them if they don't sound natural, despite they are gramatically right. Thanks!

1. Surprisingly, I got the job, even though I was late for the interview because of the traffic.

2. Mary always does her homework, even if she is tired. She is really hard-working and responsible!

3. My brother has lived in London for ten years and therefore he has a good command understanding of English. Note: I would use either "therefore" or "and"

4. They don't like to have children as  of yet; although, they both are quite young.

5. Despite being ill, Tom went to his job and finished his task. He is so such a workaholic that he has never taken a day off!

6. Both my father and my mother are afraid of flying so they usually travel by train instead of by plane. Note you don't need the crossed out part.

7. Neither my boyfriend nor I often go on holidays much since we can ill afford to.

8. James won't give up smoking unless the doctor advises him to. Note:noun and verb need to agree (singlar nown with singular verb tense.

9. This fruit is has plenty of vitamins. You should try it before saying it's disgusting.

10. I can't stand that someone lies to me as I appreciate honesty the most.

Some slight corrections or changes and notes are highlighted. It was well written overall though.