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1. A: Is that your toy train?
B: Yes, it's my new toy train
2. A: What's that in English?
B: It's a pencil sharpener.
3. A: What's this on the chair?
B: It's a book.
4. A: Who's that man?
B: He's my uncle, Mr Black.
5. A: Is he your brother?
B: Yes, heis.3 1 4 5 2