31.   All senators and representatives swear an oath to keep the secrets they receive in the form of classified information in their capacities as members of Congress.

32.   Bowing to convention, I keep secrets now.

33.   But be careful how you keep secrets.

34.   But Aftergood, a leading advocate of greater openness, argued that the new rules would still permit the intelligence agencies to keep unnecessary secrets.

35.   But for the moment, the playwright wants to keep a secret.

36.   But Haas had no chance at keeping secrets Friday.

37.   But the best is that he can keep a secret under his hat.

38.   But of course a restaurant like this is too good to keep a secret.

39.   But their secret was kept.

40.   But, hush now, can you keep a secret?