Complete the sentence: But _________ first thought of putting tea leaves into small bags?

Complete the sentence: But _________ first thought of putting tea leaves into small bags?

• A. What
• B. Which
• C. When
• D. Who

Answer: (D)

Choosing the right pronoun to ask about the person who did something. The sentence is looking for the person who first thought of putting tea leaves into small bags, so the pronoun should refer to a person and act as the subject of the clause. That’s why the word that fits best is the one used to ask about people as the subject: Who first thought of putting tea leaves into small bags? It sounds natural and correct because it targets the person responsible for the idea. What would be used for a thing or idea rather than a person, which doesn’t fit here; which implies choosing from a defined set, which isn’t at play; when asks about time, which isn’t the focus of the question. And if you needed the object of the action, whom would be used, but here the person is the one performing the action.

Choosing the right pronoun to ask about the person who did something. The sentence is looking for the person who first thought of putting tea leaves into small bags, so the pronoun should refer to a person and act as the subject of the clause. That’s why the word that fits best is the one used to ask about people as the subject: Who first thought of putting tea leaves into small bags? It sounds natural and correct because it targets the person responsible for the idea.

What would be used for a thing or idea rather than a person, which doesn’t fit here; which implies choosing from a defined set, which isn’t at play; when asks about time, which isn’t the focus of the question. And if you needed the object of the action, whom would be used, but here the person is the one performing the action.