Word omission:
a) The various discoveries and inventions made man
b) have been responsible bringing about a drastic 
c) and remarkable change in lives. Through the
d) medium of these inventions man been able to make
e) his life more comfortable luxurious, with the
f) result that these discoveries man had made
g) as luxury items now being considered
h) as essential necessary commodities. Television
i) and radio provide easy means of entertainment
for us in our homes.

Dear Student,

a) The various discoveries and inventions made by man
b) have been responsible for bringing about a drastic 
c) and remarkable change in our lives. Through the
d) medium of these inventions man has been able to make
e) his life more comfortable and luxurious, with the
f) result that these discoveries of man had made
g) as luxury items which now being considered
h) as essential or necessary commodities. Television
i) and radio provide with easy means of entertainment
for us in our homes.

Regards