By now you’ve figured out that particular sentences in a specific paragraph develop and refine a key concept by providing new information, elaborating on a point, clarifying an idea, or restating the key concept for emphasis. Read the excerpt from “Curious About Curiosity,” and select the two sentences that restate for emphasis the key concept that the Curiosity mission was a success.

Moreover, in December of that same year, scientists discovered what they believe is an ancient lake buried thousands of years ago. This evidence of water was a major triumph for the hopeful scientists back on Earth. It gave credence to the hypothesis that Mars could long, long ago have sustained a wet environment, with fresh water safe enough to drink. This type of environment indeed would be inhabitable for simple forms of life, such as the microbe. NASA, the engineers, the scientists, and everyone involved in the mission had much to celebrate!