【单选题】听力原文: Stress is a very normal part of life. Most people feel stress at some time in their lives. It doesn't come from an event itself, that is, from the things that are happening in our lives. It come...
【简答题】Mr . Lee was in bed and was trying to go to sleep when he heard the bell ring . He turned on the light and looked at his clock . It was twelve o'clock . "Who can it be at this time of night?" He thoug...