ক. knew
খ. have known
গ. had known ✔
ঘ. had been knowing
ব্যাখ্যা: Main clause---এ 'would have helped' থাকায় Third Conditional অনুযায়ী If clause---এ Past Perfect Tense ('had known') হবে।
বিজ্ঞাপন
সম্পর্কিত প্রশ্ন
- He is fourteen years old. He can take care – himself.
- Vegetables are good ____ health.
- He has ___ M.A. from Public University.
- The client lodged a complaint —— the cashier. [প্রাথমিক সহকারী শিক্ষক-১২, ৮ম প্রভাষক নিবন্ধন-১২] / The charge of murder was brought —— him.
- The colour of her eyes … blue.
- If the police had come earlier, they — the burglar.