________ it is expected that students come to college with the ability to solve most problems in their study by themselves , this is not always the case

Teachers have to constantly update their knowledge inorder to maintain their professional ____.

Hewithbad eating habits and a _______ of exercise.

Making mistakes is a part of life ___________ mattersis ___________ you do afterwards

still have a headache, Billy— No, it’s ________. I’m all right now,mum.