(2013·湖南省部分重点中学5月联考)—What are they up to？It’s so noisy.—Some students________a p

题干

(2013·湖南省部分重点中学5月联考)—What are they up to？It’s so noisy.
—Some students________a party.

A．have had	B．are having
C．had had	D．were having

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