When Ushashi entered _____ the room everybody stopped talking.
no preposition

The play ‘The Birthday Party’ is written by Harold Pinter

Who is the author of the first scientific romance ‘The Time Machine’ is H. G. Wells

Call me if you have any problems regarding your work.’ Here ‘regarding’ is a/an preposition

the correct comparative form of the sentence is –Her teeth were brighter than a string of pearls.

Huffing and puffing, we arrived at the classroom door with only seven seconds to spare.’ In this sentence the verb ‘arrived’ is intransitive.

Common Gender হলো Monarch (অধিরাজ), Sovereign (সার্বভৌম), Sheep (মেষ), calf (), pig (4), Person, Parent, স্বামী বা স্ত্রী), Spouse (), child, Baby, Teacher, Student, Servant (), Sibling (54). Horse ইত্যাদি।

To   win   𝑎   prize is my ambition.’ The underlined part of the sentence is a/an noun phrase

Terse অর্থ বাহুল্যবর্জিত, সংক্ষিপ্ত এবং লাগসই। এর বিপরীত শব্দ হলো Detailed যার অর্থ সবিস্তরে b). কিন্তু concise অর্থ সংক্ষিপ্ত; expressive অর্থ অভিব্যক্তিপূর্ণ, ভাবপূর্ণ; descriptive অর্থ বর্ণনামূলক।

Who’s that?’ In this sentence ‘that’ is a/an pronoun