1, When in Rome, do as the Romans do. 

2, The devil finds work for idle hands to do. 

3, Do in Rome as the Romans do. 

4, Wise men change their minds; fools never do. 

5, Whatever man has done man may do. 

6, Do as I say, not as I do. 

7, Toughdays don't last. Tough people do.

8, Be more specific about what you want to do.

9, Adrian spent a sleepless night wondering what to do.

10, Tough times never last,(http://sentencedict.com/do..html) but tough people do.

11, There are all sorts of jobs you could do.

12, Winners do what losers don't want to do.

13, New technology is going to revolutionize everything we do.

14, the first thing thatI'd like to do.

15, I still can't decide what to do.

16, May I come in? --Please, do.

17, I like you, and I really do. One day I will make you mine.

18, We are what we repeatedly do. Excellence, then, is not an act, but a habit. Aristotle 

19, Good for good every man can do, good for bad only a noble man can do. 

20, There is more trouble in having nothing to do than in having much to do. 

21, It is no use doing what you like ; you have got to like what you do. 

22, What we love to do we find time to do. 

23, The failures and reverses which await men - and one after another sadden the brow of youth - add a dignity to the prospect of human life, which no Arcadian success would do.

24, I have quite a bit of hand washing to do.

25, The easiest way to not get hurt is to not care, but that's the hardest thing to do.

26, Make me dictator for five years and I'll show you what I can do. I'll clean the dirt out. We need to bring law and order and should bring about the necessary changes in the constitution to achieve this. And we should stop vote bank politics done in the name of communal harmony. People have stopped loving their country. Everybody has forgotten the "mother" in motherland. Dharminder 

27, People are always neglecting something they can do in trying to do something they can't do. Edgar Watson Howe 

28, You gain strength, experience and confidence by every experience where you really stop to look fear in the face. You must do the thing you cannot do. Eleanor Roosevelt 

29, Ask what you can control and what you cannot control. Ask what you should do and what you should not do. Dr T.P.Chia 

30, You owe yourself a favor - know what you should do and what you should not do. Dr T.P.Chia