Подчеркните в последующих предложениях инфинитив:1. The manager has found the way

Подчеркните в последующих предложениях инфинитив:
1. The manager has found the way to sell the products.
2.He could find way to promote his goods.
3. The purpose of this strategy is to assist customers in gaining benefits from the products.
4. Hotel chains use telemarketers to sell week-end packages to customers