写保护自然的倡议短文 — 英语选择题
题目
Tom要写一篇保护自然的倡议短文。第一句应开门见山点明主题，结尾提出号召。下面四个开头句中，最适合作为倡议短文首句的是：A. I went to the park with my friends last Sunday. B. Nature gives us clean air and water, so we should protect it together. C. My favourite season is autumn because leaves turn yellow. D. There are many books about animals in our library.