Question

How did the daughter knew that she was knocking at the right door.​

Answer 1

Answer:

The phrase "knock on the door" usually uses "knock" as a verb. Knocking on a door is using the knuckles of the hand to hit a door to get the attention of someone on the other side of the door. The phrase "knock at the door" uses "knock" as a noun. A knock at the door is the sound that someone hears when another person hits a door with their knuckles.

Explanation:

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Answer 2

Answer:

The phrase "knock on the door" usually uses "knock" as a verb. Knocking on a door is using the knuckles of the hand to hit a door to get the attention of someone on the other side of the door. The phrase "knock at the door" uses "knock" as a noun. A knock at the door is the sound that someone hears when another person hits a door with their knuckles.