Through years of hard work, Mrs. Smith, who ____ as a secretary for five years, is general manager of the company now.
#100043
A
serves
B
served
C
has served
D
had served
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— 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.
He must have done it well, because he told me he just did what he _____ to do. 
#101080
A
has been told
B
had been told
C
was told
D
had told