38. Perhaps the most distinctive features of sharks and undoubtedly one of the most important reasons for their success is their well-developed sensory system.
38. Perhaps the most distinctive features of sharks and undoubtedly one of the most important reasons for their success is their well-developed sensory system.
此题的答案是a,这题的主语是n and n但是为什么谓语用的是is,谁能说说?
sure, features -----> feature
the original sentence = Sharks' well-developed sensory stystem is perhaps the most distinctive feature of sharks and undoubtedly one of the most important reasons for their success.