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*注意事项：
— (It/They) are tomatoes.
—Yes, they are.
A. B. C.
A. How many tomatoes are there?
B. What are these?
C. Try some!
D. Are they oranges?
A：
B：Guess.
B：No，they aren't. They're tomatoes.
B：Let me see…Thirty.
A：What about these?
B：They're carrots.
A：Thank you.
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B. 
C. 