It's not good singing in class还是 to sing in class?

It's not good singing in class还是 to sing in class? it isnot good to sing in class是什么意思 It's not p___ to talk in class it’s not p to talk in class He’s good at (Sing) in their class. I don not think it is good to eat in class,Ben ,you should 空 连词成句：right for it's not you class in sleep to It's important for students to be____(仔细)in class. 英语翻译My son’s class rose to sing “Christmas Love”.Those in th everyone is good at singing in our class 对singing提问 （ ） （） e Not everyone in our class-[be]good at-[run]. good manners in the class