填介词急用!谢谢!
1.—Wherearemybooks?—Theyareo__thesofa.2.—Whereisyoupen?—Itisi__pencilcase.3.—Wherearemyshoes?—Theyareu____thebed.4.—Whereismycat?—Itisb___thedoor.5.—Whereisthetelephone?—Itisn____tothesofa.6.—WherearetheCDs?—Theyareonthedesk,b_____thebooksandtheTV.7.Theirbookcaseisn___tothetable.8.—Isthereadeskb___thebed?—Yes,thereisadesknexttothebed.