What is a virtual choir？Virtual choir members record themselves while （1）
performing
performing
（perform）alone on video.These videos （2）
are uploaded
are uploaded
（upload） onto the Internet，and then put together into one video that you can see online-a virtual choir. （3）
What
What
you need is a video camera and an Internet connection.It is amazing that a virtual choir enables people （4）
to add
to add
（add）their voices to those of other （5）
individuals
individuals
（individual） and become part of the global community.It has proved to be a positive influence on the lives of many people.
The virtual choir was the idea of award-winning composer and conductor Eric Whitacre.In 2009，（6）
inspired
inspired
（inspire）by a video of a girl who was singing one of his works，he asked his fans to make videos，（7）
which
which
he then joined together into one performance.His first virtual choir，"Lux Aurumque"，（8）
surprisingly
surprisingly
（surprise），had 185 singers from 12 different countries，which has received millions of views on the Internet.Ever since then，the virtual choir（9）
has become
has become
（become） worldwide famous.
The virtual choir is an amazing way for people worldwide to sing with one voice，（10）
thus
thus
making the world a better place.
