The active voice or the pfssive voice? Use the appropriate forms or the verbs and write...

Question

The active voice or the pfssive voice? Use the appropriate forms or the verbs and write down the sentences.
1) a)Cristopher Columbus (discover) America in 1492.
b) Nobody knows when this fact ( discover).
2) a) The Post Office Tower in London (build) in 1964.
b) It (build) to make the telephone and television systems of the British capital better.
c) Who (build) the Tretyakov Gallery in Moscow?
3) a) The small island (not.show) on the map.
b) Mrs Pitkin (not.show) me her garden when I came to visit her.
4) a) Mr Woodriff (paint) very good portraits when he was younger.
b) A lot of strange animals (paint) on the wall. We couldn`t see all of them.
5) a) Jonathan Swift (write) "Gulliver`s Travels" in the 18th century.
b) "Battle of the Books" (write) by him too.

Answer 1

1) a) Cristopher Columbus discovered America in 1492.

 b) Nobody knows when this fact was discovered.

 2) a) The Post Office Tower in London was built in 1964.

 b) It was built to make the telephone and television systems of the British capital better.

 c) Who built the Tretyakov Gallery in Moscow?

 3) a) The small island is not shown on the map.

 b) Mrs Pitkin did not show me her garden when I came to visit her.

 4) a) Mr Woodriff painted very good portraits when he was younger.

 b) A lot of strange animals were painted on the wall. We couldn`t see all of them.

 5) a) Jonathan Swift wrote "Gulliver`s Travels" in the 18th century.

 b) "Battle of the Books" was write by him too.

Answer 2

1) a) Cristopher Columbus discovered America in 1492.

 b) Nobody knows when this fact was discovered.

 2) a) The Post Office Tower in London was built in 1964.

 b) It was built to make the telephone and television systems of the British capital better.

 c) Who built the Tretyakov Gallery in Moscow?

 3) a) The small island is not shown on the map.

 b) Mrs Pitkin did not show me her garden when I came to visit her.

 4) a) Mr Woodriff painted very good portraits when he was younger.

 b) A lot of strange animals were painted on the wall. We couldn`t see all of them.

 5) a) Jonathan Swift wrote "Gulliver`s Travels" in the 18th century.

 b) "Battle of the Books" was write by him too.