in the 21st century,a computer will play a more and more imortant role in people's everyday life.这个句子哪个地方错了?

问题描述:

in the 21st century,a computer will play a more and more imortant role in people's everyday life.
这个句子哪个地方错了?

computer 在这里不用加 a
因为在这句话中,它是一个总称。
类似的还有 Football is my favorite.
Television is bocoming more and more important.

是 In the 21st century,computer will play a more and more important role in people's everyday life.