— Do you know in ancient China?
— I have no idea. But I know people once used tree leaves to make paper.
A.how paper was made | B.how was paper made |
C.what paper was made | D.what was paper made |
— Do you know in ancient China?
— I have no idea. But I know people once used tree leaves to make paper.
A.how paper was made | B.how was paper made |
C.what paper was made | D.what was paper made |