21.   He was feeling a bit low, so I did my best to cheer him up.

22.   His discomfort was extreme and obvious, but he did his best to ignore the pain in his usual stoic manner.

23.   I did my best to give a faithful account of what happened.

24.   I did my best to make him feel at ease before the interview began.

25.   I did my best to rectify the situation, but the damage was already done.

26.   I did my best to stay out of the politics.

27.   I did my best with him, but I was never as confident as Clarisa was.

28.   I did the best I could to make him change his mind, but he refused.

29.   I guess I was doing the best I could with the knowledge I had.

30.   I promise I will do my best to help mum.