Subject
Bank Exam
Topic
Modhumoti Bank Ltd. - Probationary Officer - 2017
People ______ how light behaves thousands of years ago.
People ______ how light behaves thousands of years ago.
ক)
must have begun observingখ)
must begun to observeগ)
must to begin to observeঘ)
none of theseExplanation
Solution: এরুপ বাক্যের Structure হলো Must + have + verb এর Past participle রূপ ।আর Begum verb হবার কারণে এর পরবর্তী Verb observe এর সাথে ing যোগ হবে । তাই অপশনের a)- ই সঠিক । বাক্যের অর্থঃ শত বছর পূর্বে অবশ্যই আলোর প্রকৃতি নিয়ে চিন্তা করে শুরু করেছিলো ।Related questions
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