His speech was optimistic, but at the end of it he stroke a note caution.

A struck a note of caution
B strokes a note of caution
C strut for a note of caution
D striked a note of caution

Correct Answer: struck a note of caution

পরিবর্তনীয় অংশটি - stroke a note of caution - ভুল। কারণ বাক্যের প্রথম অংশটি past tense এ আছে। সুতরাং ২য় অংশটিও past tenseএ হবে অর্থাৎ strikeএর past form - struck হবে। সঠিক উত্তর - a ।
Bissoy MCQ

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