1.

1). 12). 23). 34).

Answer»

The sentence USES the word 'been', which means the sentence must be in PERFECT tense.

Then, as is the rule, perfect tense must contain an auxiliary verb such as 'have' or 'had'. So, the ERROR lies in the PART 2.

Therefore, the correct ANSWER is option 2.

Correct sentence - Do you think you have/had been fooled by the con-artist?$



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