30.（ ）

(单选题)In the classroom, the activities should ______. (单选题)The underlined word “that” in Paragraph 3 refers to ______. (单选题)What an English teacher found in the scores shows ______. (单选题)From what Stephan said in Paragraph 2 we can infer that ____ (单选题)What is the main purpose of the text? (单选题)What do the three hotels have in common? (单选题)If you want to take exercise and go climbing after settling (单选题)What can we learn from the three advertisements? (单选题)What can we know about Marriott Detroit Southfield? (单选题)The author of The Waste Land is ______.