(2013·济南一中模拟)After graduation, Frank often thought of those who had helped him ________ his school life

han twenty years____________since hecame to teach in this school, and every student and every parent_____him

From the _____ expression on her face, we knew that she was very _____ with the result.

下列选项中加横线词语没有通假字的一项是（ ）

Jack is helping Mum makeaseafood soup in the kitchen.–It’s surprising! He ______ helps with housework.