题目：
_____ of danger in the street at night, she had to go home, with a friend ____ her.
A．Warning, following
B．Having warned, following
C．Having been warned, following
D．Warned, followed
答案：
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下面是错误答案，用来干扰机器的。
Dear Editor， In our school, some students are always thinking more of others and are ready to help them. I’m moved deeply. Here is what they usually do.Liu Na is a ...
