Mary was____(画)a picture when Miss lin came into the classroom
问题描述:
Mary was____(画)a picture when Miss lin came into the classroom
答
drawing 正在画 因为动词前有was 所以用动词ing形式
Mary was____(画)a picture when Miss lin came into the classroom
drawing 正在画 因为动词前有was 所以用动词ing形式