II.[2015•铜仁]完形填空先通读下面的短文，掌握其大意，然后从短文后面各题所给的选项中选出最佳答案。
InChinaspring11inMarch.Theweathergetswarm.Everythingcomesbackto12Treesturngreenandflowerscome13Itisawonderfulseason.
SummerbeginsinJune.Itisveryhot.Itoftenrainsand14itrainsheavily.
Fallcomes15summer.Itistheharvestseasonandthefarmersarebusy16It'scooland17fallfromthetrees.Thecoldweatheriscoming.
Winterlasts18DecembertoFebruary.It’s averycoldseason.We’dbetter19warmclothes.Thewindblows20andsometimesthereisiceandsnow.
()11.A.return B.returns C.returned
()12.A.life B.lives C.live
()13.A.up B.out C.in
()14.A.sometime B.sometimes C.sometimes
()15.A.after B.before C.on
()16.A.harvest B.harvests C.harvesting
()17.A.leafs B.leaves C.leaf
()18.A.for B.to C.from
()19.A.wear B.towear C.wearing
()20.A.strong B.stronger C.strongly