Insufficient balance in your card,sir. 汉语意思是:先生,您的卡余额充足。
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May I get a free ticket if I show this ID card? 汉语意思是:这个证件可以免票吗?
A. 对
B. 错
________ was the underground built?(When /Which)
London Underground ______ in 1863.(operated /run)
________your best, good boy. (Do /Be)