31. Where in paragraph 1 does the following sentence best fit? "Such useful robots have usually looked like a box with wheels so far."
A. [I]
35. Which of the following best summarizes paragraph 3?
A. A snakebot is a chain of modules, each with a computer and wheel, coordinated by a main computer.
38. Which of the following best paraphrases the underlined sentence in paragraph 4?
B. Since every module has robotic abilities, any module can operate independently on its own if the situation requires it.
39. Which of the following can be inferred from the passage?
B. Because of their flexibility and shape, snakebots can navigate challenging terrain, making them ideal for space exploration.
40. Which of the following best summarizes the passage?
B. To improve space exploration, scientists are creating snakebots: flexible, modular robots that mimic snake movement, navigate confined spaces, carry tools, operate independently or together, and are more durable than wheeled robots.