Select the sentence that is grammatically correct:

The correct answer is Option (4) → Who do you think will lead the school band at the Republic Day parade this year?

“Who” after “do you think”:

• In this question, “do you think” is only an added part.
• Take it out and the question is “Who will lead the school band?”. Here “who” is the subject of “will lead”.
• A subject takes “who”, not “whom”. So Who do you think will lead is correct.

Why the Other Options are Incorrect?

Option 1: Please call me as soon as the parcel will arrive from the courier office in Surat. — Incorrect. After “as soon as”, a future action takes the simple present, not “will”.
Corrected: Please call me as soon as the parcel arrives from the courier office in Surat.

Option 2: We could not find a seat because there were too much people in the waiting room. — Incorrect. “Much” is used with things we cannot count. People can be counted, so the word needed is “many”.
Corrected: We could not find a seat because there were too many people in the waiting room.

Option 3: Neeraj is taller than any other boys in our hostel, so the warden gave him the longest bed. — Incorrect. After “any other”, the noun is singular.
Corrected: Neeraj is taller than any other boy in our hostel, so the warden gave him the longest bed.