问题
单项选择题
There is a man at the reception desk who seems very angry and I think he means making trouble.
A．to make
B．to have made
C．to having made
D．having made
答案
参考答案：A
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There is a man at the reception desk who seems very angry and I think he means making trouble.
A．to make
B．to have made
C．to having made
D．having made
参考答案：A