I.complete the passage with the correct form or tense of the words in the brackets
Television first(1)______(appear) some fifty years ago in the 1950s. Since then, it has(2)_______(be) one of the most popular souces of(3) (entertain)_______for both the old and the young. Television can(4)_______(actual) satisfy almost all kind of taste. It offers cartoons for children, world news, music and many other programs. It someone(5)_______(interest) in sports, for example, he can just choose the right sports channel. There he can enjoy a broadcast of an(6)_______(nation) football match while it is actually happening. Television is also a very(7)_______(use) way for companies to advertise their product.
It is not too hard for us(8)________(see) why there is a TV set in almost every home today. Add, engineers are developing(9)_________(interact) TV which allows(10)_____________(communicate) between viewers and producers.