felt birds clear quiet along

In the morning，the park was very（76） 　　and the only sound was the （77） 　　singing．There was no one shouting nor were any dogs barking．The sun was very bright and the air was very （78） 　　and fresh．We walked （79） 　　the lake，crossed the small bridge and climbed up the hill．We （80） 　　very happy at the top．