1) ''I ( am listening to\hear ) you, mum,but I am listening\hear) badly.''
2) we couldn't ( hear\listen to) what he was speaking about.
3) ''( Listen to\Hear) us,'' the children asked.
4) Little Lizzy likes to ( listen\hear) fairy tales.

1) ''I  am listening to you, mum,but I hear badly.''2) we couldn't hear what he was speaking about.3) '' Listen to us,'' the children asked.4) Little Lizzy likes to  listen fairy tales.