part 1
part 2
part 3
part 4
part 5
10

normal, average

typical

10

ordinary

normal

10

flat, thin, green parts of plants or trees

leaves

10

friendly, lively and cheerful

playful

10

people staying at a hotel

guests

20

character

personality
20

to look at somebody for a long time

stare

20

small thin branches on  a tree or bush

twigs

20

a thin piece cut from a large piece of bread, fruits, etc

slice

20

something tasty/enjoyable to eat

treat

30

a scheme/work to protect the environment

conservation project

30

the act of putting your arms around somebody else and holding them tightly with affection

hug

30

not common

rare

30

the person in control/in charge of a group

leader

30

unusual and interesting, usually coming from a far away country

exotic

40

an area of land that is 4047 square metres

acre

40

in their natural habitat

in the wild

40

an area of land owned by a person, family or organisation

estate

40

the person to whom something belongs

owner

40

the people who work for a company or organisation

staff

50

the place in a house where you stand

floor

50

try as hard as they can to do something well/do something as well as they can

do their best

50

kind, calm

gentle

50

to feel wanted and that people are happy you are there

feel welcome

50

not harmful to the environment

friendly to the envirionment