Polly Lingual
Past Progressive Tense
수업 시작
교수형 집행인
구
Phrases
They were talking.
관련 강의
Related Lessons
사회 예절
Social Etiquette
Simple Past Tense (Irregular Verbs)
Simple Past Tense (Regular Verbs)
To Have
흔히 사용되는 표지판
Common Signs
강의
Courses
중급
Intermediate
문법
Grammar
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