4、computer. A. my B.me C.I( )4.Thelibraryis________thesecondfloor. A. on B.at C.in( )5.—Isthisthewall? —________ A. Yes,isit. B.No,itis. C.Yes,itis.( )6.Thisis________newplaygro
5、und. A. our B.us C.we( )7.Gotothe______office.Handinyourhomework. A. teachers B.teacher’s C.teacher( )8.welcome ourschool. A.to B.have C.for( )9.Thatis____computerroom.