Употребление артиклей a, the в учебных текстах

Use the article the or a (an) if it is necessary.

Once … (1) dog was crossing … (2) small bridge. It was carrying … (3) piece of … (4) meat in … (5) mouth. Suddenly … (6) dog saw another dog in … (7) river. … (8) second dog was carrying … (9) piece of …(10) meat too, and looked exactly like … (11)  first  dog. So …(12) first dog jumped into …(13) river. It wanted to get … (14) other dog’s meat.  But …(15) dog dropped …(16) meat  and could not find any dog at all. Why?

  Hi, I am Spot. I am … (1) dog. I am … (2) little and black. I am … (3) very nice. I can play with …(4) small red ball. I like … (5)Jane. She is  … (6) nice girl. I like … (7)Betty. It is  … (8)  big doll.  … (9)doll can walk and speak. It has got … (10) big blue eyes and … (11) beautiful  dress.

Great Britain is not … (1) large country. It is much smaller than … (2)  France or … (3) Norway. It has four parts : … (4) England, … (5)Wales, … (6) Scotland and … (7)Northen Ireland. England is … (8) largest port of … (9)country. In … (10)United States of America …(11) national language is … (12) English.

…(1) Trafalger Square is …(2) very beautiful square with …(3) Nelson Column  in …(4) centre. …(5) Admiral Nelson is …(6) national English hero. …(7)London is famous for its parks.  One of …(8) most popular parks is …(9) Hyde Park.