ответ указан ниже.

Объяснение:

1).The pictures were found in an old house.

2).The first prize was won by Naomi and Simon.

3).The art thief wasn't caught by police.

4).The portraits weren't sold yesterday.

5).That big sculpture was taken on Friday.

6).These masterpieces were painted by Pablo Picasso.

7).The exhibition was opened by a famous artist.

Ответ: Somebody found the pictures in an old house.

The picture was found in an old house.

2 Naomi and Simon won the first prize.

The first prize was won by Naomi and Simon.

3 The police didn’t catch the art thief.

The art thief wasn’t caught by the police.

4 They didn’t sell the portraits yesterday.

The portraits weren’t sold yesterday.

5 Somebody took that big sculpture on Friday.

That big sculpture was taken on Friday.

6 Pablo Picasso painted these masterpieces.

These masterpieces were painted by Pablo Picasso.

7 A famous artist opened the exhibition.

The exhibition was opened by a famouse artist.

Объяснение: