I can't hear you.The ( ) is too bad

I can't hear you.The ( ) is too bad I can't hear you.The l-----is too bad. I can't hear you.The line is b it is too noisy in the classroom.i can't hear my teacher ___ The bell is too q（ ） .I can't hear it. I can't hear the bell.It's too n__ I cant hear you.The l_ is too bad,中间以l开头的填啥啊,我老 Don't sperk too f( ),or I can't hear you clearly I can t hear you.You speak too quiet.错哪里 I can't hear the piano piece.would you mind ( I really can't hear you clearly with the radio ( ) 英语翻译if i can,t hear your heartbeat,you,ar too far away