—We’redoingalottoprotectourenvironment(环境),butitisnotgo... 国语站 题库 7.73K 大中小设置文字大小 问题详情:—We’re doing a lot to protect our environment(环境), but it is not good enough. —So we should try______ to look after it.A. hard B. harder C. hardest D. carefully【回答】B知识点:动词和动词短语题型:选择题 TAG标签:butitisnotgo 环境 #