`21`. adaptation
`22`. misfortune
`23`. Ecotourism
` 36`. Shakespeare, whose birthplace was Stratford-upon-Avon, was a famous playwright.
`37`. The hotel which we stayed at wasn't very clean.
`38`. The porter told me that he would wake me up when the train arrived in Leeds.
`39`. If you are impatient, you will make mistakes.
`40`. If Nancy lived near the park, she could go running there every morning.