中科新闻网重庆二师教务系统登录:一个非常困难的问题,高手请进,垃圾不要看
来源：百度文库 编辑：中科新闻网 时间：2024/04/29 20:06:35
There great pop ______(sing)______ (sing)in the hall now.
singers,are singing
前面应该是these吧？
There great pop song is being sung in the hall now
singer is singing/singers are singing
songs;are being sung
我同意
楼上的看法.
挺简单的啊，singer,sings\singer,is singing\singers are singing