Why did the taxi driver leave Li and her mother in a dark parking lot at midnight?
A. Because the driver was a bad man.
Because they were careless and lost their address.
C. Because she was too young and her mother was too old.
D. Because they were not able to give the driver the right address in English.
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What’s the polite answer when someone asks you, “Do you mind if I sit with you?”
A. No, not at all.
B. Yes, I do.
C. Well, I don’t know.
D. You may ask someone else.
What’s the meaning of the sentence “Take a leaf out of Li’s book!”?
A. Plant trees for Li.
B. Follow Li’s example.
C. Ask Li to write a book.
D. Keep a lot of leaves for Li.
辅助变流器只有单辅助变流器（）
A. 对
B. 错
动车组采用的是复合制动方式（）
A. 对
B. 错
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