28.
Your Answer is
Correct Answer is F
Explanation
The main sentence of the sentence is my father convinced me not to pack pens in my suitcase, so before the comma is the adverbial of the sentence, no predicate verb can appear, H is wrong. The adverbial a recent mishap and the sentence verb convinced have a sequence of occurrence, which should be "after a recent small disaster, my father persuaded me..." so use after to guide the adverbial.