男孩别哭海龟先生故事:如果人人都为保护环境做出贡献___ ___ ___ ___ ___ to protecting the environment .
来源:百度文库 编辑:高校问答 时间:2024/05/12 17:15:24
If everyone makes a contribution
If everyone does his/her part to protect the enviroment
If everyone makes contribution(不可数名词)
If everyone spends his effort
If everyone make a contribution
If everyone makes a contribution