_________you have a rich knowledge of Chinese history, try acting as a guide for these foreign visitors.
#31038
A
Unless
B
Though
C
Now that
D
Ever since
推荐题目
________ advertisements are of great help, I don’t think we should entirely rely on them.
#31478
A
Because
B
Since
C
Once
D
While
______ the terrible pollution, so many beautiful fish are fast disappearing in the river.
#33675
A
According to
B
Because of
C
Because
D
As a result
________I was in trouble, he would come to help me out.
#31120
A
Every time
B
The first time
C
for the first time
D
Next time
There’s no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
#31181
A
since
B
if
C
as
D
while