题目内容
（请给出正确答案）
[单选题]
The General Secretary of the Union regretted ______ the public inconvenience and blam
A.having caused
B.to cause
C.to have caused
D.cause
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–– Secretary: Hello.______ May I help you？
–– Caller: Yes, this is Albert Cordell. May I speak to Elaine Strong, please？
A: Ultimate Computers.
B: Who are you？
C: Who is speaking？
D: I ’m the secretar y.
