Final answer:
The subject can be either 'George and him' or 'George and he', depending on the intended meaning. 'George and him' if it is the object of 'expected' and 'George and he' if it is the subject of 'assisted'.
Step-by-step explanation:
The subject of the sentence in question is 'George and him' or 'George and he', depending on the intended meaning.
If 'George and him' is meant to represent the object of the verb 'expected', then the correct phrase would be 'We expected George and him to assist us...'.
On the other hand, if 'George and he' is meant to represent the subject of the verb 'assisted', then the correct phrase would be 'We expected George and he to assist us...'. In this case, 'George and he' are the ones doing the action of assisting.
Learn more about Subject in a sentence