My mother is a teacher of E____. She is very k____ to her students. She always h____ them with their lessons. After class she often t____ to them and l____ to them carefully. My mother loves her job and she is n____ be late for work. She goes to work on foot. It takes her h____ an hour to get to school. All the pupils in my class like her i____ class.

力的三要素：____、____、____。

下列各句中，没有语病的一项是(　　)

下列各句中，加横线的词语运用正确的一项是（  ）