—Have you ever seen a panda Linda?—Yes I just saw at the zoo last Sunday .A. himB. one

问题补充：

—Have you ever seen a panda , Linda?

—Yes , I just saw at the zoo last Sunday .

A. him

B. one

C. it

D. that

答案：

A. him

(答案→)B. one

C. it

D. that

解析：one替代词，代替前文所提到那类人或物，而 it代替前文所提到的那个人或物。