问题
选择题
— How much are they? — __________[ ]
A. They are thirty yuan.
B. They are thirty.
C. They are yuan.
D. They are thirty yuans.
答案
答案：A
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— How much are they? — __________[ ]
A. They are thirty yuan.
B. They are thirty.
C. They are yuan.
D. They are thirty yuans.
答案：A