There are many famous cultural relics in our country, many _______ thousands of years ago.
#90927
A
dating back to
B
date back to
C
dated back to
D
were dated back to
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There are many kinds of metals, ______.
#91614
A
each having its special properties
B
having its special properties
C
one has its special properties
D
each has its special properties
Five years later, he returned home, his character greatly _________.
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A
changed
B
changing
C
having changed
D
was changed
Local villagers ______the doctors with the people ______ in the bus crash.
#91015
A
assisted; wounded
B
aided; wounding
C
help; wounding
D
saved; wounded