Are you satisfied with what she has done?— Not at all. It couldn’t be ________.

下列各句中，划线的成语使用不恰当的一项是

I enjoy the street dance “hip-hop”, but _________ myfather _________ my mother likes it.

The clock has just _________ twelve. All the teachers should stop _________ and let the students have a rest.

Ann often helps her mother _____ the washing and cooking.[ ]