A
There are 30 students in Jim's class. But on Monday morning, his teacher found some of them were not feeling well and didn't come to school. What's the matter?

()16. How many students were there in Jim's class on Monday?
A. 5. B. 15.
C. 25. D. 30.
()17. Why didn't Bob go to school?
A. He had a stomachache. B. He had a cold.
C. He had a sore throat. D. He had a fever.
()18. Who had to stay at home for five days?
A. Bob and Jane. B. Kate and Jack.
C. Kate and Eric. D. Jack and Eric.
()19. If Jack went to see a doctor on Saturday, when can he go to school according to the doctor?
A. On Monday. B. On Wednesday.
C. On Thursday. D. On Friday.
()20. Which of the following is TRUE according to the passage?
A. Jane and Kate fell ill on the same day.
B. Jack and Eric should take some medicine twice a day.
C. Bob should take the medicine for four days.
D. Jim is a teacher in a middle school.

16. C
17. D
18. C
19. B
20. A

16. 已知班级总共有30名学生，表格显示有Jane、Jack、Kate、Bob、Eric共5名学生生病未到校，因此到校人数为30-5=25，故选C。
17. 查看表格中Bob的信息，他的症状是have a fever，故选D。
18. 查看医生建议栏，Kate和Eric的建议中都有rest for five days，故选C。
19. Jack上周六看医生，医生建议rest for three days，从周六开始休息三天（周六、周日、周一），周三可以返校，故选B。
20. A选项：Jane和Kate的生病起始日都是last Friday，表述正确；B选项Eric不需要吃药，表述错误；C选项Bob是休息两天，并非吃药四天，表述错误；D选项Jim是学生不是老师，表述错误。故选A。