【正确答案】Topic: I believe the dormitory is not the place for animals for the following reasons.
Reason 1: Firstly, pet cats and dogs carry dander and other dirt in their hair. For example, if one girl brings a dog into a dorm, she may cause a number of students to have an allergic reaction, which can interfere with their life and study.
Reason 2: Also, pets bring health issues. They may make nesses on the floors, invite bugs and fleas, and can also become sick with colds that can spread to the students.

【答案解析】Alternative Wording(替换表达)
Synonyms (a)a number of—several (b)interfere with—affect
(c)make messes—urinate, defecate (d)bugs—pests
(e)become sick—fall ill, get a disease
Paraphrases Having pets raises health and sanitation concerns.