Dear Clark,
How are you? 
E
 Now let me tell you something about my daily life.
From Monday to Friday, my day starts at 6:30 and I do some exercise for thirty minutes. At 7:30, I have some bread and milk for breakfast. 
F
 My class starts at 8:20 and ends at 5:30. I like having maths classes. Most students think it's difficult to learn maths well, but I don't think so. 
B
 At 5:45, I go back home and then I play tennis with my friends for about one hour. 
A
 After dinner, I watch some shows on TV.
At the weekend, my life is a little different from that on weekdays. 
D
 Sometimes I stay at home and clean my room.
I love my life.
Yours,
Laura
答案:16. E 17. F 18. B 19. A 20. D