TomBillandDavelosttheirbackpacks.Theyareatthelostandfoundcase.Thebackpacksarethesame(一样的)butthethingsinthemaredifferent.Canyouhelpthemfindtheright(正确的)backpack?Tom:Ihaveamathbookandapencilcase

　　TomBillandDavelosttheirbackpacks.Theyareatthelostandfoundcase.Thebackpacksarethesame(一样的)butthethingsinthemaredifferent.Canyouhelpthemfindtheright(正确的)backpack?

　　Tom:Ihaveamathbookandapencilcaseinmybackpack.Therearethreepencilsapenandaneraserinthepencilcase.

　　Bill:IhaveaChinesedictionaryamathbookandtwonotebooksinmybackpack.

　　Dave:TherearetwoCDsthreepicturebooksinmybackpack.MyEnglishbookisalsoinit.

　　1.Thethreeboyslosttheir       .

　　A.pens        B.backpacks

　　C.keys        D.dictionaries

　　2.Whichofthefollowing(下面)isinTom’sbackpack. A(an)________.

　　A.pencilcase  B.dictionary

　　C.notebook     D.Englishbook

　　3.Billdoesn’thave       inhisbackpack.

　　A.amathbook    B.apencilcase

　　C.twonotebooks  D.aChinesedictionary

　　4.      is/arenotinDave’sbackpack.

　　A.TwoCDs              B.Threepencils

　　C.Threepicturebooks   D.AnEnglishbook

　　5.Whohas/haveaneraser.

　　A.Tom  B.Bill  C.DaveD.TomandDave