Imagine a situation where you are referring to someone walking outside. You say "Who is that?" In response to this question, which of the following is (are) correct?
If all of them or two of them are acceptable, what is the difference?
1. It's Ms. Green, our new neighbor.
2. That's Ms Green, our new neighbor.
3. She's Ms. Green our new neighbor.
Also I have found the following example.
4. It's the Smiths.
5. It's the same mom and dad.
Isn't it necessary to use "they are" instead of "it is" when talking about more than two people? Or "it's" is acceptable in the above examples because "the Smiths" and "mom and dad" are regarded as one unit, a family?
What about talking about two individuals?
Can you say "It's Tom and Mary"?
Thank you always.