People who have studied ancient instruments are hoping to learn more about the culture that ______ this ancient flute.
#77452
A
produce
B
produced
C
is producing
D
was produced
推荐题目
He came to a point _______ there was no more road to follow, and before him he could see nothing but a thick forest.
#76633
A
where
B
what
C
which
D
that
I showed several old friends of mine around the city, _________ surprise，the changes had been so great.
#77094
A
whose
B
to whose
C
which
D
to which
Family fights are the things _______I feel upset.
#77553
A
about which
B
of which
C
in which
D
on which