1) Credit, like a looking-glass, broken once, is gone, alas! 

2) Such scandals have not, alas, been absent.

3) Alas, they've all sold out, madam.

4) Alas, my love, I must leave now.

5) Donald, alas, died last year.

6) I love football but, alas, I have no talent as a player.

7) For many people, alas, hunger is part of everyday life.

8) Alas, I am still immersed in Fog.

9) This, alas, was unconnected with Carib thinking.

10) Alas, poor Albion. i have deliberately overstated the case.

11) Alas, the library became outmoded.

12) Alas, the turbot was less well regarded.

13) Alas, the station master at Ripon spoiled the plan.

14) But, Alas, we relapse again on the morrow.

15) Alas, the author of this historic remark is unrecorded.

16) Alas, many companies are already wise to this tactic.

17) Adventure giants Atlas, alas, have closed down.

18) From that, alas, real trouble arose.

19) Alas, they are just a trifle over life size.

20) That is where, alas, we may lose the plot.

21) At last, warm weather - but alas, no mink.

22) But, alas, he does have one professorial failing.

23) Alas, this is a very busy morning.

24) Alas, I bring ill tidings.

25) There is no law, alas,(http://sentencedict.com/alas.html) against merely telling lies.

26) The promise, alas, was broken.

27) Not, alas, from one ex-Colorado theoretical physicist.

28) Rolle, alas, must fail this test.

29) Alas, complexity infuses transit projects.

30) Alas, it's not that simple.