Polly Lingual
The Present Progressive Tense
开始上课
刽子手
短语
Phrases
Are you going to the store?
Related Lessons
现在时态
Present Tense
社交礼仪
Social Etiquette
与人见面
Meeting People
星期几
Days of the Week
Perfect Present Tense (Compound Past)
课程
Courses
中级
Intermediate
语法
Grammar
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