21.   Sure, some people may doubt her sincerity, says Davis, stopping at a Taylors Bookstore in north Dallas during her book tour.

22.   Who could doubt the sincerity of a candidate answering that questionnaire with such gusto?

23.   But some ethnic Albanian officials doubt the sincerity of Macedonian lawmakers to follow through on the amnesty.

24.   Critics doubt his sincerity.

25.   Fans agreed with the sentiment, although some doubted the sincerity.

26.   He later retracted the remarks under pressure, but Koreans doubted his sincerity.

27.   It also doubted its sincerity in releasing documents.

28.   Some ethnic Albanian officials doubt the sincerity of Macedonian lawmakers to follow through on the amnesty.