| A | B |
| elective | an optional academic course or subject |
| scowl | to look angry by drawing the eyebrows together and frowning |
| quiver | to shake with a slight, rapid move |
| ferocity | extreme fierceness, intensity |
| conviction | a strong belief;assuredness |
| linger | to continue to stay; delay leaving |
| trudge | to walk heavily, plod |
| portly | stout or overweight |
| bluff | to mislead or deceive;to fake |
| sheepishly | with a bashful or embarrassed look |