Subject

    English Language

    Topic

    Right forms of verb

    They ______across the river last year.

    ক)
    have swum
    খ)
    has swum
    গ)
    swam
    ঘ)
    have been swimming

    Explanation

    -কোনো বাক্যে ago, last night/week/month/year, long ago, long since ইত্যাদি অতীত নির্দেশক শব্দ থাকলে sentence-টি past indefinite tense হয়। -structure-টি হলো: subject + v₂ + extension।

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