新版pep三年级下册unit-1-B-lets-learn

UnitOneWelcomeBacktoSchool!1UKCanadaChinaUSA你知道它们分别是哪个国家的标志性建筑吗？Makeintroductions.ThisisMike.____astudent.He’sThisisSarah.____astudent.She’sThisisMr.Jones.____ateacher.He’sThisisMissWhite.____ateacher.She’s