You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
Solution: Who believes Fagin's gang make wallets and handkerchiefs?.
Why? This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.

New input: Passage: When Matt moved to Hollywood he made a pact with himself that if he wasn't a working actor in exactly seven years he'd quit the business and move back to Washington, DC. As the film opens Matt finds himself seven days shy of his self-prescribed deadline, and he's just as anonymous as the day he arrived into town. After an afternoon of soul searching in the mountains he decides to honor his deadline, and plans to spend his final week in Hollywood visiting friends to tell them he's leaving for good and that he'll have a going away party to cap it all off.
With a couple days left before his going away party and tension mounting, Matt visits his eclectic mix of friends and people who have affected him over the years. Despite intending to tell them he's quitting the business, he chickens out, not quite being able to bring himself to tell them. 
On the night of the going away party he starts to think he's been stood up by everyone he thought he cared about and thought cared about him. But finally Dylan shows, then Robert, Amanda, JR - even Mylo, which means a great deal to Matt - and before long all the people he's visited over the past week are at the party. Amid drinks and music each friend stands up and gives their "goodbye Matt" speeches, making it clear that even though Matt's leaving he'll never be forgotten; he may be giving up on his dreams but he's been a good friend and helped a lot of people. In the middle of Matt's going away speech Sara pops in, looking beautiful, and Matt becomes so shocked and tongue-tied that he has to cut his speech short and take Sara out back alone. It is here that Matt asks her bluntly: "If I stay in Hollywood would you be with me?" She shakes her head. This is the final straw. There's officially nothing keeping him in Los Angeles. Matt is emasculated, and now more inspired than ever to leave Los Angeles in his rear view mirror. He heads back into the party to say his final goodbyes.
Solution:
Who;s appearance causes the struggling actor to cut his speech?