i have got ------to tell you.a.a good news b.a piece of good news

B
表示一条好消息用：a piece of good news.因为news是不可数名词,前不能直接加 a
不明白的再问哟,请及时采纳,多谢!my son wants a pet rabbit for long ， but i no time to buy(it, one, the one)for himone用代词one去代替pet rabbit"宠物兔”