Please answer this correctly without making mistakes

What prediction did douglass’ owner master make about what would happen if he learned to read? did it come true? why or why not?

Which sentence contains a gerund? sally is fishing on the lake with her father and brothers.marcus is supposed to be joining the discussion later today.my cat was not interested in the dangling string.her chorus director does not appreciate angela's fidgeting.

What is the meaning of "full tide" as it is used in this sentence? before i could explain to her the differences of language in this world, she was embarked on the full tide of another subject. a long and involved argument an inaccurate representation a detailed and lively discussion an uncontrollable flood