无
*注意事项：
A. yellow B. vegetable C. umbrella D. water
—______, it is.
—Is this a box?
—Yes, it is.
—Is that a cat?
—No, it isn't. It's a tiger.
—What's this?
—It's a pear.
—Is it a rabbit?
—No, it isn't. It's a lion.
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