2009年世界粮食日的主题是[ ]
A．保护生态，实现粮食安全
B．预防灾害，实现粮食安全
C．应对危机，实现粮食安全
D．保护耕地，实现粮食安全
答案：C
No one can be sure _____ in a million years. [ ]
A. what man looks like
B. what will man look like
C. what man looked like
D. what man will look like
