John always tries to _____ people who are useful to him professionally. A. develop B. provoke C. correspond D. cultivate [答案]D. cultivate. [注释]cultivate sb.结识(有地位的人),培养与......的友谊:He always tries to cultivate rich and famous people.(他总是极力结识有钱的知名人士。) 本题译文:约翰总是力图结识在职业方面对他有用的人。