What could a chair say to deal with the situation when a speaker goes overtime in a speech? There ar

What could a chair say to deal with the situation when a speaker goes overtime in a speech? There are three proper expressions listed in the choices. Choose all of the correct answers.

A.Well, Dr. Li, I’m afraid time is up; we thank you very much for your enlightening opinions.

B.Since you have already used up our agreed-upon time, I have to ask you to stop here.

C.Excuse me, sir, since the time’s quite limited, could you please stop the discussion?

D.That is all for today. Our next meeting will be on Thursday morning at the same time and place.

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