14:I[5014,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"default"] 15:I[38392,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"PracticeCard"] 17:I[70570,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"ExamAppearanceBadge"] 16:T5be,

সঠিক উত্তর: ক) has decreased.

• Complete sentence: The number of tourists visiting the city has decreased recently.

• Structure:
• The Number of + Plural Noun + Singular Verb হয়।
- যেমন -
- The number of girls is present in today's program.
- The number of people was very high.

অন্য অপশনগুলো কেন ভুল:
খ) have decreased:
→ 'have' plural subject এর সাথে ব্যবহার হয়, কিন্তু এখানে subject singular.

গ) were decreased:
→ passive voice এবং past tense, context এর সাথে মিলছে না।

ঘ) decreased:
→ simple past tense, কিন্তু 'recently' এবং present effect বোঝাতে present perfect ব্যবহৃত হয়।

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অন্যদিকে,
- A number of + plural Noun + plural verb.

• আরো কিছু উদাহরণ -
• A number of boys are present in today's class.
- A number of books have been borrowed from the library.
- A number of employees are attending the conference.
- A number of houses were decorated for the holiday season.
- A number of birds migrate south during the winter.
- A number of books fill the library shelves.