B) Read the numbered lines and correct the mistakes in the spaces provided.

Some lines are correct. Indicate these lines with a tick V.

1. In the last twenty years, the Rancine Corporation (brought) you - …has brought…

2. over a hundred wonderful new products. Today, (I'm feeling) - I feel

3. proud to announce another. We (haven't known) what we are - do not know

4. going to call it yet, but at the moment we are referring to it - V

5. (like) "Minus 10". This is because this product will make any - as

6. (woman to look) ten years younger. These photographs show - woman look

7. a (sixty-years-old) woman before and after she had tried the - sixty-year-old

8. cream. The active ingredient is a rare plant (who) one of our - which

9. scientists discovered while he (has done) research in the - was doing

10. Amazon. In our initial experiments, we observed women - V

11. who (use) "Minus 10" over periods of one month, two - had been using

12. months and six months. Since then (we improved) it even - we have improved

13. more and by next summer we (will perfect) it. - will have perfected