He had collected plenty of historical evidence, proved that humans used to have different sleeping patterns.
#76733
A
that
B
which
C
it
D
what
推荐题目
Some passers-by witnessed the car accident____ five passengers were killed, a baby included.
#77515
A
that
B
which
C
in which
D
in that
For many cities in the world, there is no room to spread out further, ______ New York is an example.
#75480
A
for which
B
in which
C
of which
D
from which