How to Use "boast" with Example Sentences

1. Secular-minded beirutis like to boast of lebanon 's wineries .
2. An even more tiresome category of businessman uses twitter to boast .
3. Locals boast that they pay their taxes by sms .
4. How many central banks can boast of the same ( profitable ) record ?
5. Thirty years ago in the uk children were still taught that it was rude to boast .