Question

add or remove commas, if necessary, until the sentence has correct punctuation. klaus baudelaire giggles blushes and sighs when someone sends him flowers.

Explanation:

In a list of verbs like "giggles", "blushes", "sighs", commas are used to separate the items.

Answer:

Klaus Baudelaire giggles, blushes, and sighs when someone sends him flowers.