English Grammar Tenses-Present Tense, 英語文法の時制-現在形, 英语语法时态-现在时, 영어 문법 시제- 현재 시제
English Grammar Tenses-PresentSimple Present Describing a state in the present V+(s) Japanese: V Di...
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English Present Perfect Tense, 現在完了形, 现在完成时连接
Present Perfect TenseThe present perfect tense connects a past event to the present. It is ...
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Pinyin (拼音) is the official romanization system for Standard Mandarin, developed in the 1950s in Ch...
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