Unit 6 How long have you been collecting shells ?See the worldLearn EnglishChina goes to the world Grammar: sentence structure have + been +v+ing 现在完成进行hasEg: I have been learning English for five years. Li Lei has been dancing since 2000. For two years collect v. collection n. collector...

时间:2024-11-21 13:08栏目:中学教育