The Tense (Corrections)

একাদশ- দ্বাদশ শ্রেণি - English - English Grammar & Composition | | NCTB BOOK
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# বহুনির্বাচনী প্রশ্ন

Would the authorities know/would contacted
Did the authorities know/will have contact
Had the authorities known/would have contacted
Were the authorities knew/could contact
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