Question

select the antecedent of the pronoun we. bernard and i meant to buy oranges, but they turned out to be tangerines. i guess we both think that oranges and tangerines look the same.

Explanation:

The antecedent of a pronoun is the noun or noun phrase it refers to. In the sentence, "we" refers to the group consisting of Bernard and the speaker ("I"). So we look for the noun phrase that "we" replaces, which is "Bernard and I".

Answer:

Bernard and I