What does the author want to do in Paragraph 2?

(单选题)18.（ ） (单选题)17.（ ） (单选题)16.（ ） (单选题)—I spent the whole night prepare the coming exam.—Don’t stay (单选题)—Could you tell me ______?—He is kind and generous. He alway (单选题)—Mind your step! Someone fell over because of the wet floor (单选题)The number of classes in our school is ______ than ______ of (单选题)—Xiamen is a wonderful place. I ______ there many years ago. (单选题)—Tom, what ______Candy ______ just now?—Sorry, I ______ up t (单选题)—Mum, when can I watch TV?—As soon as your homework ______.