大家帮忙看一道英语题Experts think we won’t have clean water to drink u

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大家帮忙看一道英语题
Experts think we won’t have clean water to drink unless something ___soon,but much remains____ about environment protection.
A、would be done;doing B、is done;to be done
C、will be done;to do D、is done;to do
选哪个啊,记得给出解释啊

选B
第一空条件状语从句,
第二空remainto be done 固定搭配
to do 表示要去做,而且是被完成 ,所以是to be done

大家帮忙看一道英语题Experts think we won’t have clean water to drink u 求教英语题Experts think we won’t have clean water to drink unless if we don't have clean water to drink,what will you do? People won't have access to clean drinking water ,the waste We need clean water to drink every day.对clean提问（）（）of wat We have to offer much loss,I believe you won’t want to see u The water isn't clean enough to drink.(改为同义句） The water is _ We need water to drink,to cook and to clean ourselevs.这里clea We have not got enough water to drink. (同义句) We will have no water to drink——we don‘t protect the earth的翻 All animals need clean water to drink we need water to drink,to c_____our food ang clean ourselves