用下列所给单词填空完成短文 lunch beautiful starts under have for

用下列所给单词填空完成短文 lunch beautiful starts under have for
It is a 1.( ) sunny day.There isn’t a clound in the sky.Greg wants to have 2.( )at once.But we decide to 3.( ) a swim first.After swimming,we have a picnic lunch 4.( ) the trees.then we lie in the sun 5.( ) a while.In the afternoon it begins to get cloudy.At four o'clock,we have to go back because it 6.( ) to rain