写一份保护动物的倡议 — 英语填空题
题目
请根据单元所学，完成这封保护动物的倡议书（每空一词）。Dear friends, Wild animals are in danger. We should s___ them. First, don't buy things m___ of ivory or fur. Second, we can p___ more trees to give animals a safe home. Third, ask more people to j___ us. Let's act now!