1-C. Telling herself and other people "I knew it all along" helped Nancy feel more secure about her intelligence and her ability to see into the future.Telling herself and other people "I knew it all along" helped Nancy feel more secure about her intelligence and her ability to see into the future.
2-C. They may feel happier and more secure.They may feel happier and more secure.
彼らはより幸せに感じるかもしれません、さらに、より安全にダヨ。
securing確保
3-C. Regardless of what they attach themselves to, it is of major importance that astronauts avoid drifting by securing themselves before sleeping.Regardless of what they attach themselves to, it is of major importance that astronauts avoid drifting by securing themselves before sleeping.