The example of verbal irony in this sentence is that the words "Oh, great" are used to express the opposite of their actual meaning. Missing the bus is not great, so saying "oh, great" sarcastically is an example of verbal irony. Likewise, the smile of delight on her face also shows that the speaker is perceivably happy or amused about missing the bus, which is also contrary to what one would expect they would react to.
The sentence "Oh, great, we missed the bus," she said" contains an example of verbal irony. Verbal irony is a figure of speech in which a speaker says one thing but means another. In this case, the speaker says "Oh, great," which would typically express excitement or positivity, but the context of missing the bus implies that the speaker is being sarcastic or expressing disappointment.
