--- Did you find the pen yesterday?
--- No, I didn’t find ________, but I have bought ________.
A. it; it B. one; it C. it; one D. one; one
--- Did you find the pen yesterday?
--- No, I didn’t find ________, but I have bought ________.
A. it; it B. one; it C. it; one D. one; one
C
C 用it 表示同类事物，特指前面提到的那支笔。在第二个空中，用one表示某一只笔。