(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.
#99122
A
have had 
B
are having
C
had had 
D
were having
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The construction of the two new railway lines   by now.
#99633
A
have been completed
B
has been completed
C
has coompleted
D
have completed
— Flight MU257 ______, I must be off now.— Have a nice trip.
#102791
A
is being announced
B
has announced
C
was announcing
D
had been announced.
 A new Wanda cinema _______ here. They hope to finish it next year. 
#99667
A
will be built
B
is built
C
has been built
D
is being built