it isnot good to sing in class是什么意思

it isnot good to sing in class是什么意思 It's not good singing in class还是 to sing in class? He’s good at (Sing) in their class. it is good to have friends in troubie.是什么意思?急需 I don not think it is good to eat in class,Ben ,you should 空 请翻译Dave helps to make it a good class Dave helps to make it a good class 请翻译 listening to the teacher c___ in class is a good Good students always listen to his lesson____ in class. the girl preferred sing to dancing in front of the class改错 my little brother is a____ to sing in the class,He is shy 英语翻译My son’s class rose to sing “Christmas Love”.Those in th