If the building project_______ by the end of this month is delayed, the construction      company will be fined.
#90096
A
completed
B
is completed
C
to be completed
D
being completed
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On ______ the flight would be delayed, we made other arrangements.
#97918
A
being informed
B
informed
C
informing
D
having informed
Unless ___ to speak,you should remain silent at the conference. 
#94186
A
invited
B
inviting
C
being invited
D
having invited