单句改错1．ItisthesecondtimethathehadbeentoShanghaisofar.2．T...
问题详情：单句改错1．ItisthesecondtimethathehadbeentoShanghaisofar.2．Two-fifthsofthelandinthedistrictarecoveredwithtreesandgrass.3．Whatthebosssaidatthemeetingleftadeeplyimpressiononhisemployees.4．Wanglinisst...