单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．The man couldn’t find a parking lot.
B．It’s hard to find a place to leave the car.
C．The woman was upset due to his late arrival.
D．The man apologized because of his negligence.
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填空题
With all the guests staring at him, he ______ (他感到很羞愧造成如此手忙脚乱).
单项选择题
It can be learned from the text that the teachers ban harmful experiments to animals in order to
A．maintain ecological balance
B．please animal welfare groups
C．get financial support from their sponsors
D．protect necessary harmless experiments on animals
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