那是一个书包吗？不，它不是。应该说：
A. Is that a schoolbag? No, it isn’t.
B. Is this a schoolbag? No, it isn’t.
C. Is that a schoolbag? Yes, it is.
相关试题
—This is Li Lei,Mom.
— ?
—Good morning!
A. Good morning, Li Lei. B. What’s your name?
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