Rewrite the sentences using pasive structures 1)they discovered a new source of energy a month ago. 2)they have developed a new branch of industry. 3)they know this island as an island of wonders. 4)they haven`t discussed this question yet. 5)they didn`t publish this article in the local newspaper last week.

1) A new source of energy was discovered a month ago.
2) A new branch of industry has been developed.
3) This island is known as an island of wonders.
4) This question hasn`t been discussed yet.
5) This article wasn`t published in the local newspaper last week.