问题详情：
28. The underlined word "invade" in Para. 1 probably means___
A. enter B. leave C. accept D. fight
29. Which of the following can be best put in___ _ in Para. 2?
A. Each teacher is different B. Each student is different
C. All teachers are helpful D. All students are fun
30. Of the 4 comments, ___thinks that robots could give lots of help to learners in class.
A. Sara B. Keiko C. Hassan D. Nancy
31. What's the writer's attitude (态度) towards robots' teaching English?
A. Uncaring. B. Supportive. C. Doubtful. D. Agreeable
【回答】
28. A 29. B 30. D 31. C
知识点：广告布告类
题型：阅读理解
