Relative pronouns exercise 2

Put a suitable relative pronoun in each gap

Murder at the station by Lorraine Small.
The story so far: Jane Platt, 1…........... is travelling to London because of a mysterious letter, is the only person 2…........... witness a murder at Victoria Station. The detective 3…...........she gives her statement to then disappears. Jane goes to an office in Soho to answer the letter 4…........... she had received. There she discovers that her uncle Gordon, 5…...........lives in South America, has sent her a small box 6…...........she is only to open if in trouble. Jane, 7…........... parents have never mentioned an Uncle Gordon, is suspicious of the box, 8…........... she gives to her friend Tony. They go to Scotland Yard and see the Inspector Groves, 9…........... has not heard of the Victoria Station murder, 10…........... was not reported to the police. Jane gives Inspector Groves the murdered man's ticket 11…........... she found beside his body. Then Jane and Tony decide to go to Redhill, 12…........... was the town 13…........... the murdered man had come from. On the train they meet a man, 14…........... face is somehow familiar to Jane, 15…........... says he knows her Uncle Gordon. Now read on.