求助:两道英语题,帮我选一下正确答案,顺便告诉我为什么好吗?谢谢啦!1.We must do everything we can______waste water from running into rivers.A.keep B.keeping C.to keep 2.How will you spend May Day holiday?We have had a fam

求助:两道英语题,帮我选一下正确答案,顺便告诉我为什么好吗?谢谢啦!1.We must do everything we can______waste water from running into rivers.A.keep B.keeping C.to keep 2.How will you spend May Day holiday?We have had a fam 英语选词填空.帮我填全部,要正确答案,做完对一下而已. 请教英语大神帮我解答124568这6道题正确答案并说明理由, 帮我解一下这个方程,我怎么总解不出正确答案! 会的帮我一下 我想核对正确答案 帮我看一下英语这道翻译题对吗? 英语帮我一下2题 帮我看一下英语第九题, 英语翻译求助````请大家帮我用英文翻译一下谢谢``` 求助,高人帮我分析一下这个英语句子的语法结构! The problem is difficult to be solved 帮我解决两道英语逻辑推理题,十万火急, 帮我解决两道英语逻辑推理题,十万火急, 英语大师帮我一下 帮我求助数学18题方程 帮着做一下这些英语题的正确答案,并讲解一下为什么这么选 只有两题,求助!是英语!有答必采! 请帮我做一下7 8两题 6,7两题可不可以帮我一下,谢谢了!