Choose the correct answers.

1. They announced that they ____ a new product.
a) have developed  b) had developed
2. They said that they ____ to do some market research.
a) were going  b) are going
3. They told us that the new product ____ be in the shops soon.
a) will  b) would
4. She said she believed that it ____ be an enormous success.
a) could  b) can
5. They explained that they ____ test out the new product.
a) had to  b) have to
6. He said that it ____ a long time to develop the product.
a) has taken  b) had taken
7. He wanted to know if I ____ the book before.
a) had read  b) read