the music sounds ____.i want to listen to it again.

题目

the music sounds ____.i want to listen to it again.
[beautifully][well][bad][beautiful]
-
would you like to go hiking with us?
___.because i'm busy.
[no,i wouldn't][i'm not afraid][sorry,i don't][i'd love to,but i can't]
-
he often goes to school ___.
[rides a bike/by bikes/on a bike/by the bike]

答案

beautiful
i'd love to,but i can't
by the bike