十、Sam今天值日，我们跟随他的脚步一起看一看吧。阅读短文，完成任务。(10分)
My name is Sam. Today is a special(特别的)day for me. I am on duty today. I go to school early in the morning. Before class, I turn on the lights and the fans. And then I clean the blackboard. After school, I close the windows, and turn off the lights and the fans. On the way home(回家路上), I say goodbye to others.
值日生离校须知
3 Dos:
Turn off the lights and the fans.
Close the windows.
Say goodbye to others.
1 Don't:
Don't leave the classroom early.
任务一：根据Sam的经历，按事件发生的顺序选择相应的选项补全时间轴，将其字母序号写在横线上。(5分)

A. turn on the lights
B. turn off the lights
C. clean the blackboard
D. say goodbye to others
E. close the windows
任务二：阅读短文和值日生离校须知，判断下列句子的正(T)误(F)。(5分)
()1. Sam is late for school today.
()2. Sam turns off the lights in the morning.
()3. After school, Sam closes the windows and turns off the fans.
()4. On the way home, Sam says hello to others.
()5. Students on duty shouldn't leave the classroom early.

任务一：1.A 2.C 3.E 4.B 5.D
任务二：1.F 2.F 3.T 4.F 5.T