This is my first practice writing in this app. I can read simple English books, but I am not good at speak and write. So I think that I need more practice them.

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Sun JinTao

2022년 9월 20일 오전 8:05

교정 · 3

This is my first practice writing in this app. I can read simple English books, but I am not good at speaking and writing. So I think that I need more practice them.

A verb in infinitive form takes always the 'ing' form after a preposition: at + ing.

2022년 9월 20일

This is my first practice writing in this app. I can read simple English books, but I am not good at speaking and writing. So I think that I need more practice them.

2022년 9월 20일

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