Поставьте предложения в вопросительную и отрицательную формы. 1. the price of goods will certainly depend on the terms of delivery 2. among insurance documents there are insurance policies and insurance certificates. 3. there have been changes in russia’s trading partnerships.

1
Will the price of goods certainly depend on the terms of delivery?
The price of goods won't certainly depend on the terms of delivery.
2
Are there insurance policies and insurance certificates among insurance documents?
Among insurance documents there aren't insurance policies and insurance certificates,
3
Have there been changes in Russia's trading partnership?
There haven't been changes in Russia's trading partnership.