C 唱诗队，唱诗班 a group of people who sing together especially during religious services

　choir　是可数集合名词，用作主语时，谓语动词可用单数形式，也可用复数形式。

　form a ～　组成歌唱队
　lead a ～　指挥歌唱队
　male ～　男声合唱团
　the brass ～　铜管乐组
　the string ～　弦乐组
　the wood-wind ～　木管乐器组
　～ boy　唱诗班男童歌手
　～ girl　唱诗班女童歌手
　～ loft　唱诗班楼座
　～ master　唱诗班领队
　～ organ　唱诗班风琴
　～ practice　合唱训练
　～ school　唱诗班学校
　～ stall　唱诗班座位
　～ of carolers　颂歌演唱队

　The children's choir meet/meets on Saturday to rehearse.　儿童唱诗班礼拜六聚在一起练习。
　The church choir is/are singing tonight.　今晚教堂歌唱队要唱诗。
　The choir dates from the 14th century.　教堂唱诗班的席位建于14世纪。
　The procession of priests moved through the choir to greet the faithful people.　牧师们走过唱诗班的席位向虔诚的信徒们致意。
　We have three choir practices a week.　我们诵诗班每周练习三次。
　Beth sings in the school choir.　贝思是学校合唱团的成员。
　John missed the party because he was singing in the choir.　约翰没能参加晚会，因为他在唱诗班里唱歌。
　Our neighbors sing in the church choir.　我们的邻居们在教堂唱诗班里唱歌。
　We visited the church where Schubert sang in the choir.　我们参观了那个教堂，舒伯特曾参加过那里的唱诗班。
　She could date her admission to the choir by Father Peter's last visit.　她可以从彼得神父上次来访算出自己是哪一天参加唱诗班的。