花开了,草绿了,小燕子从南方飞回来了,用英语怎麽写

The flowers is blooming, the grass is growing green the swallow is back from the south.

我是按照初中原来老师说过草绿了用grow好些
和根据理解用的现在进行时

the flowers blow ,the grasses turn green , the swallows fly back from the south

the flowers bloom, the grass become green and the swallow fly back from the south.

the flowers bloom, the grass become green and the swallow fly back from the south

when the flowers is blooming and the grass become green, the swallow come back from the south.