cross-across-through的区别练习

练习：cross,across,through1.Wemust________theroadverycarefully.2.Beforegoing_________theroad,youshouldlookleftfirstandthenright.3.Look!Themanisswimming_______thelake.4.Theydrove_______thestreetquickly,butthepolicecaughtthematlast.5.Thesunlightcomes_______theglass.6.________thestreetandyoucangettothehotel.7.He_________theroadandthencomestothepostoffice.8.Walk_______thefootbridge.9._______thefootbridge.10.Thetwofriendswerewalking_______theforest.