23. The writing brushes ____bamboo and animal’s hair.
#103314
A
are made of
B
is made from
C
is made of
D
are made up
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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