The pet dog found his master. He said to the master,"It' me." (In a catroon)
1. It's me.
2. This is me.
3. I'm me.
4. That's me.
(Can the pet use only #1? What about the other expressions?)
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The master said, "Is that you?"
5. Is that you?
6. Is it you?
7. Is this you?
(Can the master use #5 alone? What about the other sentences?)
#1 is the best, but #2 could work, too. #s 3 and 4 are different.
#s 5, 6, and 7 all would work for the master's question.