After months of colder weather，the days get longer，the buds 1 in the trees，birds sing，and the world put 2 a green dress.Spring passes 3 summer.Everyone knows that summer will not 4 .The power of all the wisest men and women in the world cannot keep it for us.The corn becomes ripe，the leaves turn brown and then drop to the ground， 5 the world changes its green dress for a dress of autumn colors.

1.A.fall of B.take up C.put off D.come out

2.A.off B.on C.out D.down

3.A.into B.by C.from D.upon

4.A.forego B.evaluate C.go D.last

5.A.yet B.therefore C.since D.and