Three pie charts illustrate the changes in learning English from 2010 to 2015 in Country A, Country B and Country C.
Overall, evening classes in three countries decreased while online classes and studying abroad dramatically edged up. Despite dropping, evening classes still ranked first in the proportion of students.
In 2010, country C had the highest percentage of attendees, with a massive 94%, followed by Country B and Country A, at approximately 70%. In 2015, those figures saw a significant downward trend, to 82%, 48%, and 67% respectively. By contrast, the number of online classes in three countries rocketed throughout the period. This type of class in Country C and Country A doubled, whereas this in Country B experienced a fourfold increase during the period. In terms of going abroad to study English, as opposed to the number of students participating in country C which slightly went up from 0% to merely 3%, the percentage of participation in country A declined by 2% while this figure in Country B remained unchanged at one - fifth of the total in this 5-year-period.
These days, in some countries, the number of teenagers visiting theaters and classical concerts or plays seriously plummeted. This essay will discuss the underlying causes before justifying my approval of having some encouragements for them to attend more.
To begin with, there are two main reasons for this phenomenon. Firstly, the lack of time lies at the root of this reduction. These days, young people, especially students, are always overload with their assignments and homework. Because they cannot arrange suitable time for going to the theaters or music concerts, many of them opt for listening to this music via the Internet in which young people can access a wide range of songs with just a mouse-click. Secondly, the change in their favourite genre also leads to the decrease of teenagers taking part in these performances. In times of intergration, in addition to classical music, these people have more opportunities to listen to various types of music in different countries, such as Kpop in Korea, pop or rock music, …. As a result, the number of young people who are captivated by classical music considerably plummet, which results in the phenomenon that there are a few young people being engaged in classical music performances in theaters or the plays in concerts.
Secondly, It is vital for the authorities or government to encourage them to take part in these concerts since the protection of attendances is the preservation of this kind of music. The less people participate in these concerts, the less classical concerts or performances are held. Moreover, due to the deficiency of young attendants, it is tough for this genre of music to be passed down to the next generations; therefore, it easily become obsolete and fall into oblivion.
To conclude, I believe that there are two main causes of the reduction in the number of teenagers who go to classical music concerts or plays and visit peformances in the theaters. Furthermore, the motivation for these people to take part in more classical music performances is important in order not to allow this traditional kind of music be outdated. 
Three pie charts illustrate the  
changes
 in learning English from 2010 to 2015 in  
Country
 A,  
Country
 B and  
Country
 C. 
Overall
, evening  
classes
 in three  
countries
 decreased while online  
classes
 and studying abroad  
dramatically
 edged up. Despite dropping, evening  
classes
  still
 ranked  
first
 in the proportion of students.
In 2010,  
country
 C had the highest percentage of attendees, with a massive 94%, followed by  
Country
 B and  
Country
 A, at approximately 70%. In 2015, those figures  
saw
 a significant downward trend, to 82%, 48%, and 67%  
respectively
. By contrast, the  
number
 of online  
classes
 in three  
countries
 rocketed throughout the period. This type of  
class
 in  
Country
 C and  
Country
 A doubled, whereas this in  
Country
 B experienced a fourfold increase during the period. In terms of going abroad to study English, as opposed to the  
number
 of students participating in  
country
 C which  
slightly
 went up from 0% to  
merely
 3%, the percentage of participation in  
country
 A declined by 2% while this figure in  
Country
 B remained unchanged at one  
-
 fifth of the total in this 5-year-period.
These days, in  
some
  countries
, the  
number
 of  
teenagers
 visiting theaters and  
classical
  concerts
 or plays  
seriously
 plummeted. This essay will discuss the underlying causes  
before
 justifying my approval of having  
some
 encouragements for them to attend more.
To  
begin
 with, there are two main reasons for this phenomenon.  
Firstly
, the lack of time lies at the root of this reduction. These days,  
young
  people
,  
especially
 students, are always  
overload
 with their assignments and homework.  
Because
 they cannot arrange suitable time for going to the theaters or  
music
  concerts
,  
many
 of them opt for listening to this  
music
 via the Internet in which  
young
  people
 can access a wide range of songs with  
just
 a mouse-click.  
Secondly
, the  
change
 in their  
favourite
 genre  
also
 leads to the decrease of  
teenagers
 taking part in these  
performances
. In times of  
intergration
,  
in addition
 to  
classical
  music
, these  
people
 have more opportunities to listen to various types of  
music
 in  
different
  countries
, such as  
Kpop
 in Korea, pop or rock  
music
, ….  
As a result
, the  
number
 of  
young
  people
 who  
are captivated
 by  
classical
  music
  considerably
 plummet, which results in the phenomenon that there are a few  
young
  people
  being engaged
 in  
classical
  music
  performances
 in theaters or the plays in concerts. 
Secondly
, It is vital for the authorities or  
government
 to encourage them to  
take part
 in these  
concerts
 since the protection of attendances is the preservation of this kind of  
music
. The  
less
  people
 participate in these  
concerts
, the less  
classical
  concerts
 or  
performances
  are held
.  
Moreover
, due to the deficiency of  
young
 attendants, it is tough for this genre of  
music
 to  
be passed
 down to the  
next
 generations;  
therefore
, it  
easily
  become
 obsolete and fall into oblivion. 
To conclude
, I believe that there are two main causes of the reduction in the  
number
 of  
teenagers
 who go to  
classical
  music
  concerts
 or plays and visit  
peformances
 in the theaters.  
Furthermore
, the motivation for these  
people
 to  
take part
 in more  
classical
  music
  performances
 is  
important
 in order not to  
allow
 this traditional kind of  
music
  be outdated
.