求现在完成时的句型和肯定否定的句子和回答.包括:基本句型和例句!
问题描述:
求现在完成时的句型和肯定否定的句子和回答.包括:基本句型和例句!
答
have done
I have had lunch
I haven't had lunch
Have you had lunch?Yes,I have ; No,I haven't