Can you friend sing?

Can you friend sing? can you sing ()than your friend?(good) Can you sing as ___as your friend?(good),怎么添 Can you sing ( ) I can sing? Can you __(sing)? what()can you sing Can you ---(hear)her---(sing) who can you sing改错 ( )you( )what I can sing can you sing the song Can you sing English songs? Can you sing or (dance)