1-20
15-35
20-40
30-50
40-60
100

correct

accurate

100

fundamental

crucial

100

easy to adapt

flexible

100

beeing too emotional or eager for something

enthusiastic

100

very close to, almost

nearly

200

a condition giving a greater chance

advantage

200

find someone

come across

200

stop trying

give up

200

the action of getting better

improvement

200

to feel discourage, not having enthusiasm or concern any more 

lose interest

300

a competitive action

challenge

300

The last day to present a project or work

deadline

300

knowledge by doing

experience

300

formal speech, generally academic

lecture

300

To focus on something or someone

pay attention

400

to stay away from

avoid

400

the one who leads workers or employees

employer

400

what you do constantly, without even thinking

habit

400

schedule or plan for a trip

itinerary

400

Maybe

probably

500

when something seems true

apparently

500

sumary 

curriculum

500

cheer up or support someone

encourage

500

to expect a meeting or an event

look forward to

500

when the environment is full of harmful substances

pollution