Exercício: Direct Speech x Indirect Speech (Reported Speech)

Não consigo passar todas as frases do discurso direto para o indireto. Alguém pode me ajudar? As frases são as seguintes:
1- Bob said "don't forget to write your names on your book".
2- The teacher asked me,"what does the title of your story mean?"
3- Mother said to my brother, "why did you quit your job?"
4- I said to you, "what time did the sun rise yesterday?"
5- Jane said, "I can't help you because I am sweapping the floor now."
6- The secretary said, "I've sent our catalogue to you twice last month."
7- She said,"Dad was shaving when I arrived."
8- He said, "It's a shame they shoot birds in this area."
9- Nancy said, "I like the clothes you were wearing the day before yesterday."
10- He said, " Can you teach me how to use your computer?"
11- I said to the clerk,I wind my every day but it is always five minutes behind."
12- Mother said, "Who tore my beautiful curtain?"
13- Jack said, "Did you ride my horse this morning?"
14- Mary said,"Someone stole my ring from my drawer."
15 My sister said, "the shirt I bough last week shrank terribly."

Muito obrigada para quem puder me ajudar..