问题描述：
英语非谓语动词几道选择题分析下.
1Don't worry about him,Mom.He's a man-----for all emergencise.A.preparing B being prepared C having prepared D prepared 2.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
1Don't worry about him,Mom.He's a man-----for all emergencise.A.preparing B being prepared C having prepared D prepared 2.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
问题解答：
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