填空题 Directions: Read the following passage and translate the underlined sentences into Chinese. Remember to write your translation in the corresponding space on the Answer Sheet.
(71)Can love really last a lifetime? Absolutely. (72)But only if you believe the fairy tale of living happily for ever. A team of scientists recently found that (73) romantic love involves chemical changes in the brain that last 12 to 18 months. After that, you and your partner are on your own. Relationships require maintenance. (74) Pay a visit to nursing home if you want to see proof of lifelong love. Recently I spoke to an old man whose wife of 80 years was suffering from advanced Alzheimer's disease. (75) He came to sit with her every day and hold her hand．"she's been my best friend since high school,"(76) he told me," We made a promise to stick together. " Now that is a love story.