问题
选择题
Although the official didn’t mention any names, everyone knew who he _____.
A．refers to
B．had referred to
C．has referred to
D．was referring to
答案
答案：D
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Although the official didn’t mention any names, everyone knew who he _____.
A．refers to
B．had referred to
C．has referred to
D．was referring to
答案：D