1  Look at the sentences in the Grammar box. Answer the questions (1-6).Third conditionala If I had looked after my teeth, I would have saved a lot of money.b If someone had told me earlier not to prioritise work, I wouldn't have wasted so much time.c I wish I had taken better care of myself in my youth. d If only I hadn't worked so much.1 (Sentence a) Did she look after her teeth? Did she save a lot of money?2 (Sentences a and b) Can the speakers change these situations?3 What form of the verb is used in the if-clause? What form of the verb is used in the result clause? 4 (Sentences c and d) You learnt about I wish and If only. What time are they expressing in these sentences? What emotion is being expressed? 5 What structure is used with I wish and If only here? 6 (All sentences) Are the sentences describing real events or imaginary ones?More explanation in Grammar reference on p. 76.  2 Complete the secrets to a long life with the correct form of the verbs.Most hundred-year-olds have few regrets. If they didn't have such a positive view of life, they probably wouldn't have survived so long. Here are some of their secrets: 1 Jiroemon Kimura (Japan) lived all the way to 116. He said he (not / live) so long if he (eat) big meals. He always had small portions.2 Jeanne Louise Calment (France) is the only person to have lived to 122. She thought that if she (worry) about her health, she (die) much earlier.3 Fred Hale (United States) believes he (not / surf) for the first time at 95 years old if he (not / eat) honey all his life.4 Emma Morano (Italy) was the last person alive to be born in the 1800s. If she (not / live) as a single woman for most of her life, she  (be) a lot less healthy, she thought.5 In a survey, a third of the hundred-year-olds questioned said they wished they (spend) more time with loved ones.6 A quarter of them said: 'If only I (save) more money when I was younger.' 3 Work in pairs. Read the story, then make sentences in the third conditional using the given clues.Sometimes sad events can lead to rewarding lives. Frida Kahlo was an artist who was famous for painting self-portraits. When she was six, she got polio. Her father also had a disability, and he paid her lots of attention and taught her about art.She wanted to be a doctor, but she nearly died in an accident when she was eighteen. She spent months in bed painting. Her family placed a mirror above her so she was able to paint herself. Frida never fully recovered from her injuries, but she became famous because of her self-portraits.1 sad events / not / happen, Frida / not / have / rewarding life2 her father / not / have / disability, he / not / teach her about art3 she / not / have / accident, maybe / she / become / doctor4 her family / not / place / mirror / above, she / not / able / paint herself5 she / fully / recover / injuries, she / not / become famous 4 4 Imagine you could give some advice to yourself at the age of seven. Write three things about your life that you have been happy about and three things that you wish had been different. Then write a letter to your younger self. Use the third conditional, including If only and I wish.It's great to talk to you from the future. Please don't worry-you have great life ahead of you. There are just a few things that I wish had been different. First, ...