The diagrams above 
illustrated
 a museum's Wrong verb form
illustrate
floor
 plan development in Use synonyms
2008
-2012 period. 
Correct article usage
the 2008
Overall
, there Linking Words
was
 changes in the museum Change the verb form
were
floor
 layout as there was more Use synonyms
floor
 and rooms provided. Another significant Use synonyms
changes
 was the stairs replaced by lift in 2012.
In 2008, only two floors Replace the adjective
change
constructed
 in museums with limited spaces for Add a missing verb
were constructed
people
 Change noun form
people's
activites
. Correct your spelling
activities
In
 the first Change preposition
On
floor
, visitors could explore several rooms Use synonyms
such
 as Linking Words
gallery
, shop and Add an article
the gallery
a gallery
cloak 
Correct your spelling
cloakroom
room
. People moving to Use synonyms
second
 Add an article
the second
floor
 using stairs where reception and reading Use synonyms
room
 available. Use synonyms
People
 entrance Change noun form
People's
Linking Words
also
 located Add a missing verb
was also
in
 the second Change preposition
on
floor
 Use synonyms
which
 they arrived in Correct word choice
where
reception
 Add an article
the reception
a reception
room
.
In 2012, several major changes happened to the museum plan as there Use synonyms
is
 more Wrong verb form
was
room
 and Use synonyms
new
 elevator facility. The Correct article usage
a new
numbers
 of Fix the agreement mistake
number
Use synonyms
room
 increased which align with the Add an article
the room
floor
 Use synonyms
levels
 addition, in total there Change the noun form
level
was
 4 floors. Several new rooms are Change the verb form
were
children's
 play area, entrance hall, restaurant, terrace, self-service cafe and exhibition Correct article usage
a children's
room
. An elevator Use synonyms
Linking Words
also
 added Add a missing verb
was also
into
 the building, moving visitors from Change preposition
to
first
 to Correct article usage
the first
fourth
 Add an article
the fourth
floor
.Use synonyms