Question

Isabel is with Tom.She's with _____.​

Answer 1

Tom.
Объяснения- тут просто поменяли Isabel на She , поставили ее в неизвестность .

Answer 2

Isabel is with Tom. She's with Tom.

In this sentence, "Isabel" is mentioned as being with "Tom." When you say, "She's with _____," you are essentially asking who Isabel is with. The answer, in this case, is "Tom." So the blank should be filled with "Tom."

The sentence can be rewritten as: "Isabel is with Tom. She's with Tom."