圣诞节到了，你知道该怎样装扮圣诞树吗？排列句子。

( ) First, put on the lights.

( ) Then, put the star on the top.

( ) It's fun to put up a Christmas tree.

( ) There! It's done! How beautiful!

( ) Second, put Christmas things on the tree.

( ) Now, put our gifts under the tree.