Nuclear science should be developed to benefit the people harm them.
Sarah made ________ to the airport just in time to catch her plane this morning.
This project requires close teamwork. ________ will be achieved unless we work well together.
________ can be good at something for 40 years if he doesn't love it.
Recycling is one way to protect the environment; reusing is ________.
Although Rosemary had suffered from a serious illness for years, she lost ________ of her enthusiasm for life.