英语高手来帮我看看1.The rubbish_______(throw)away just now by the dus
英语高手来帮我看看
1.The rubbish_______(throw)away just now by the dustem.
2.If man_______(cut)more trees,the environment_____(become)worse and worse.
3.A lot of laws_____(make)to prevent pollution in the past few years.
4.We must stop________(pollute)the air by_______(use)CFCs
在回答能请分析一下时态.我英语不好哩.帮我看看哦