Subject

    Language And Communication

    Topic

    Tense

    He had written the book before he ---.

    ক)
    retired
    খ)
    had retired
    গ)
    has retired
    ঘ)
    will be retired

    Explanation

    Before এর আগে past perfect tense (sub+had+past participle) হয়, পরের অংশ past indefinite tense হয়। After এরপর past perfect tense (sub+had+past participle) হয়, আগের অংশ past indefinite tense হয়।

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