"Mi chiedo cosa gli abbia fatto cambiare idea."

Translation: I wonder what had made him change his mind.

[Thoughtdiva]

if it is 'had made him' shouldn't it be 'gli avesse fatto'? "Gli abbia fatto" should be "has made him"?

[BeSafeDear]

i think
'i am wondering what has made him change his mind'
should work also.

[paulmacd]

"I wonder what could have made him change his mind" was accepted (but "I ask myself what could have made him change his mind" was not-reported).

[coledanielj]

Generally, without some form of "potere" in the italian sentence, you shouldn't write "could".

I am guessing that the database of correct answers needed updating.

[paulmacd]

Yes, I think that you are right and I am not!

[pablosch61]

Why could it not be I wonder what SHE DID TO HIM to change his mind.

[Budd01]

I was wondering the same thing. why is the indirect object "gli" used here rather than the direct object "lo"?

[BobPonte]

How about "what was done to him" as an English translation?

[RoccoJerry1]

To make someone do something

Fare A + (person) + (infinitive form of a verb)

Indirect pronouns such as gli must be used

The person is an indirect object.