| hard at work on(expression, activity, adjective, idiom, feature) |
| hustling(adjective, energetic, active, full, daring) |
| immersed in(expression, activity, adjective, idiom, feature) |
| keep busy(expression, verb, join, catch, interest) |
| live(verb, active, occupied, running, functioning) |
| on active service(expression, activity, adjective, idiom, feature) |
| preoccupied with(expression, activity, adjective, idiom, feature) |
| pushy(adjective, prominent, conspicuous, impertinent, unmistakable) |
| spirited(adjective, moving, energetic, active, vigorous) |
| vibrant(adjective, activity, business, characteristic, movement) |
| vigorous(adjective, moving, keen, energetic, lively) |
| work(profession, verb, action, process, occupation) |
| absorbed(adjective, property, occupied, engaged, captivated) |
| active in(expression, idiom, activity, business, characteristic) |
| at work on(expression, idiom, activity, business, characteristic) |
| busy as a bee(expression, idiom, activity, business, characteristic) |
| complex(adjective, upset, fancy, exact, energetic) |
| complicated(adjective, upset, fancy, exact, uncertain) |
| eager(adjective, strong, keen, intense, energetic) |
| earnest(adjective, strong, enthusiastic, active, thoughtful) |