Swallows are singing excitedly on the branches.

The swallow sings a song to tell us that spring has come.

In spring, swallows fly in wearing black tuxedos and singing cheerful songs.

Swallow built a house in the tree, with two bedrooms and a living room.

6. In spring, the little swallow came with a brisk pace.

7. Spring has come. Swallows put on new clothes and fly back from the south.

When spring came, the swallow hurried back to report the news.

9. In spring, everything revived, and the swallows put on new clothes and came back singing.

10, in spring, swallows fly back from the south like angels.

1 1. Swallows are humming happily on the branches.

12, Swallow happily ran to Mother Chun and returned to her arms.