Lesson16 　　A 　　1ItisanEnglishcar. 　　2ItisaJapanesecar. 　　3ItisanItaliancar. 　　4ItisaFrenchcar. 　　5ItisanAmericancar. 　　6Robertisnotateacher. 　　B 　　1Whatcolourareyourshirts?Ourshirtsarewhite. 　　2Whatcolourareyourcoats?Ourcoatsaregrey. 　　3Whatcolourareyourtickets?Ourticketsareyellow. 　　4Whatcolourareyoursuits?Oursuitsareblue. 　　5Whatcolourareyourhats?Ourhatsareblackandgrey. 　　6Whatcolourareyourpassports?Ourpassportsaregreen. 　　7Whatcolourareyourumbrellas?Ourumbrellasareblack. 　　8Whatcolourareyourhandbags?Ourhandbagsarewhite. 　　9Whatcolourareyourties?Ourtiesareorange. 　　10Whatcolourareyourdogs?Ourdogsarebrownandwhite. 　　11Whatcolourareyourpens?Ourpensareblue. 　　12Whatcolourareyourcars?Ourcarsarered. 　　Lesson18 　　A 　　1Thatmanistall.Heisapoliceman. 　　2Thosegirlsarebusy.Theyarekeyboardoperators. 　　3OurnamesareBrittandInge.WeareSwedish. 　　4Lookatourofficeassistant.Heisveryhard-working. 　　5LookatNicola.Sheisverypretty. 　　6MichaelBakerandJeremyShortareemployees.Theyaresalesreps. 　　B 　　1Aretheykeyboardoperatorsorairhostesses? 　　Theyaren'tkeyboardoperators.They'reairhostesses. 　　2Aretheypostmenorpolicemen? 　　Theyaren'tpostmen.They'repolicemen. 　　3Aretheypolicewomenornurses? 　　Theyaren'tpolicewomen.They'renurses. 　　4Aretheycustomsofficersorhairdressers? 　　Theyaren'tcustomsofficers.They'rehairdressers. 　　5Aretheyhairdressersorteachers? 　　Theyaren'thairdressers.They'reteachers. 　　6Aretheyengineersortaxidrivers? 　　Theyaren'tengineers.They'retaxidrivers. 　　7Aretheypolicewomenorkeyboardoperators? 　　Theyaren'tpolicewomen.They'rekeyboardoperators. 　　8Aretheymilkmenorengineers? 　　Theyaren'tmilkmen.They'reengineers. 　　9Aretheypolicemenormilkmen? 　　Theyaren'tpolicemen.They'remilkmen. 　　10Aretheynursesorhousewives? 　　Theyaren'tnurses.They'rehousewives. 　　Lesson20 　　A 　　1Thosechildrenaretired. 　　2Theirmotheristired,too. 　　3Thaticecreammanisverybusy. 　　4Hisicecreamsareverynice. 　　5What'sthematter,children?Wearethirsty. 　　6What'sthematter,Tim?Iamtired. 　　Answers 　　B 　　1Arethechildrentiredorthirsty?They'renottired.They'rethirsty. 　　2Arethepostmencoldorhot?They'renotcold.They'rehot. 　　3Arethehairdressersthinorfat?They'renotthin.They'refat. 　　4Aretheshoessmallorbig?They'renotsmall.They'rebig. 　　5Aretheshopsshutoropen?They'renotshut.They'reopen. 　　6Arehiscasesheavyorlight?They'renotheavy.They'relight. 　　7Aregrandmotherandgrandfatheryoungorold?They'renotyoung.They'reold. 　　8Aretheirhatsoldornew?They'renotold.They'renew. 　　9Arethepolicemenshortortall?They'renotshort.They'retall. 　　10Arehistrouserssh