Which of the following sentences is a compound-complex sentence? Cats are good pets because they are clean, they enjoy cuddling, and they are not noisy.
Tyler wasn't trying to be funny, but his friends all laughed at the serious story he told them.
When we were young, our father taught us many lessons, and he is still teaching us today.
Without giving away the ending, Willy was able to explain the plot of the show.