Subject

    English Language

    Topic

    Voice

    They have built a perfect dam across the river.

    ক)
    Across the river a perfect dam was built.
    খ)
    A perfect dam has been built by them across the river.
    গ)
    A perfect dam should have been built by them.
    ঘ)
    Across the river was a perfect dam.

    Explanation

    Sentence টি Present perfect tense। Present perfect tense যুক্ত active voice কে passive voice এ রুপান্তর করার নিয়ম- Structure: Object এর subject + have been/ has been + verb এর past participle form + by + subject এর object. ✔A perfect dam has been built by them across the river.

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