As a journalist, Joan finds worthwhile to spend time chatting with people of different ba

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A. one
B. that
C. her
(答案→)D. it
解析：考查it作为形式宾语。本题中的it是一个形式宾语，真正的宾语是后面的不定式to spend time chatting with people of different backgrounds and nationalities.
句意：作为一名记者，Joan发现花点时间和来自不同的背景和国籍的人聊天是值得的。故Ｄ组却。