We used to mistake that heavy objects fell faster than light       .
#11694
A
the ones
B
those
C
ones
D
these
推荐题目
 Those who are ______ their present situations will surely make no more advances in life. 
#13901
A
content to
B
satisfied of
C
pleased to
D
content with
—The tree is so tall. —Yes. It ______nearly 20 metres. 
#11671
A
measures
B
is measured
C
measure
D
to be measured