The well-covered passageway gave shoppers protection______the summer sun and the winter rain.A off B under C from D in这题怎样选择答案.特别是BC 求大伙解释..

英语翻译用一般现在时例：The well needed to be covered up.（一般过去时） She covered the well with a big stone 的被动语态及The workers are buiding a new road. The ground is covered with table covered with the wipers covered covered Mount Wuyi is(well)worth visiting.The mountains there are covered with all kinds of green plants.Mount Wuyi is(well)worth visiting.The mountains there are covered with all kinds of green plants.为什么填well 不是very ,much,quite等词？ It covered the whole the distance The snow covered everything.（同义句） The ground is covered with d_____leaves(die) The wall was covered with a____. the boy covered himself with a b___ The road__with __leaves leads to the villageA covered fallenB covering fallingC covered fallingD have covered having fallen Please help ,It's urgent.The new packing method is working extremely well,but there remain issues with the sharp edges of staples being covered with selotape and poor printing of the batch coding on the outer cartons. the young man ____10,000 miles so far. A has covered B had covered C covered.选哪个,为什么?谢谢 In 1620,about half the USA__forest.A.was covered B.was covered by C.were filled with D.covered with 问到英语语法问题.8.The well-covered passageway gave shoppers protection _____ the summer sun and the winter rain.(选C,为什么不是选B)A. off B. under C. from D. in The loss caused by the fire was adequately covered by insurance...covered