What kind of music do Chen Rui like best?—She likes the music _________ is quiet and gentle. [ ]

______ is no _______ arguing with Bill because he will never change his mind.

What a lovely present the old lady has received for her ______ birthday!

―I wonder _______they are waiting.―At the bus stop.

I can’t find the bookstore _____ my father bought the book for me yesterday.