A.machine B.match C.headache D.chemistry
A.proper B.best C.reasonable D.most
A.appliance B.equipment C.utility D.facility
A.component B.element C.item D.particle
A.products B.possession C.material D.ownership
A. B. C. D.
A.曲调准确 B.唱得有情感 C.结合学生生活 D.重在唱会歌词,产生背诵英语材料的作用