用恰当的be动词填空1.I______aboy.______youaboy?No,I_____not.2.Thegirl______Jack'ssister.3.Thedog_______tallandfat.4.______yourbrotherintheclassroom?5.Where_____yourmother?She______athome.6.How_______yourfather?7.MikeandLiuTao______atschool.8.Whosedress______this?9.Whosesocks______they?10.That______myredskirt.11.Who______I?12.Here______ascarfforyou.13.Here______somesweatersforyou.14.Sometea______intheglass.15.Gaoshan'sshirt_______overthere.16.Mysister'sname______Nancy.17.This______notWangFang'spencil.18.There______agirlintheroom.19.There______someapplesonthetree.20._______thereanykitesintheclassroom?