回答先说答案 然后说理由 没理由不行 1、A:Remember__the classroom after school.B:OK.选项：A.to clean B.clean C.cleaning D.are clean2、A:I think__is important__English well.B:I agree with you.选项：A.he;to learn B.it;to learn C.it;learn D.he;learn
问题描述：
回答先说答案 然后说理由 没理由不行
1、A:Remember__the classroom after school.B:OK.
选项：A.to clean B.clean C.cleaning D.are clean
2、A:I think__is important__English well.B:I agree with you.
选项：A.he;to learn B.it;to learn C.it;learn D.he;learn
答
1A remember to do sth 固定句式 2B it 作形式宾语，learn 引导真正的宾语从句，注 介词后加宾语从句 望采纳
答
A remember to do sth.记住做还未做的事（未发生）,remember doing sth.记住做过什么事（已发生）；
B it is important to do sth.it是形式主语,to do 是不定式作真正主语.