How to Use "dumbfounded" with Example Sentences

1. The board , sitting in the audience , was dumbfounded .
2. Ione looked at her dumbfounded .
3. Richard looked dumbfounded as he followed her behind .
4. I took a good long look at his mouth , frozen in an open dumbfounded expression , eyes to the heavens as he sought more words to convey his wife 's brilliance-an image that will surely be useful someday .
5. Once this stunt shocked the secret chinese and foreign audience , even global famous magician david copperfield , watched the scene after the face dumbfounded .