Socialattentionshouldbepaid 国语站 题库 1.21W 大中小设置文字大小 问题详情：Social attention should be paid _______ our earth from _______. A. to prevent; being polluted B. to prevent; pollutingC. to preventing; being polluted D. to preventing; polluted【回答】C知识点：非谓语动词题型：选择题 TAG标签：#
