．No one knows exactly when our ancestors started talking，but new evidence suggests _______might have happened a long time ago．
#16908
A
which
B
what
C
it
D
they
推荐题目
--- What about the price of these washing machines?--- They are equal in price to, if not cheaper than, ____ at the other shops in the street.
#15105
A
others
B
it
C
that
D
the ones
Timmy tells me that you find_____on the Internet.
#56707
A
new anything
B
new something
C
anything new
D
something new
Clothing made of man-made materials has advantage over _________ made of natural ones like cotton, wool or silk.
#15150
A
one
B
it
C
that
D
the ones