It used to be thought _____ the Earth was flat.
#16601
A
as
B
when
C
since
D
that
推荐题目
 Who was it _____ saved the drowning girl?
#16316
A
since
B
as
C
that
D
he
 Timmy tells me that you find_____on the Internet.
#57241
A
something new
B
anything new
C
new something
D
new anything