one who是什么意思

　　有这样一道题：He is a hard-working student, _________ who will be successful in whatever career he chooses. A. that B. he C. one D. which此题答案选C，one 相当于 a student。类似地，以下各题也选one，它们分别相当于 a table, a break, a question, a Mexican carpet, a moment：(1) A table made of steel costs more than _________ made of wood.A. one B. it C. those D. which(2)“Why don’t we take a little break?” “Didn’t we just have _________?” A. it B. that C. one D. this(3) The question is _________ of great importance. A. that B. it C. one D. what(4) She wants a Mexican carpet, but she can’t afford to buy _________.A. one B. it C. them D. the one(5) Meeting my uncle after all these years was an unforgettable moment, _________ I will always treasure. A. that B. one C. it D. what

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