Fill in the gaps with the right articles or no article.1.___louder

Fill in the gaps with the right articles or no article.
1.___louder the song,___better you heatr it.
2.A lot of people prefer_spring to___summer.
3.I'll see you___tomorrow afternooo.But don't forget to give me a call in ___morning.
4.It was___late autumn when we had the first snow.
5,Don't forger to thank your mother for the party. It was___lovely evening.
6.___fewer people know your secret,___better.