Answer:
Hope all your birthday wishes come true!”
“It's your special day — get out there and celebrate!”
“Wishing you the biggest slice of happy today.”
“I hope your celebration gives you many happy memories!”
“Our age is merely the number of years the world has been enjoying us!”
I hope u like it
A study term - Visualize, Concentrate, Relate, Repeat, Review
The repetition of the word knock, first of all, conveys a specific literary device which is called Alliteration. Here is the definition of alliteration: It is the appearing of the same, exact letter or sound at the starting point of adjacent or closely linked words. Secondly, the repetitious sound of knocking , conveys the knocking as continuous. Hope that this answers your question.