【单选题】

{{I}}Questions 17—20 are based on a conversation betweenDr. Frances and Li Ming about Li Ming’ s planned visit toCambridge. You now have 20 second to read Questions 17—20.{{/I}} What is the pointDr. Frances is making when he mentionsAli

A、Some things cannot be learned from books.
B．Foreign students am very much alike.
Choice of where to live varies from person to person.
D．Convenience is his first consideration in choosing where to live.