根据所给汉语 和句子意思,用英语补全句子. 1. Eating more fruit ______________________ (有益健康). 2. The exchange students from Australia are coming. Who ______(带领他们参观)our city? 3. When they got to the station ,the train _____________(已经离开)for 20 minutes. 4. Some of his advice _________________(值得采纳), I think. 5. Do you think ______________(有必要花)so much time writing blogs every day?