________ the Internet is of great help, I don’t think it’s a good idea to spend too much  time on it.
#79667
A
While 
B
As 
C
Because 
D
If
推荐题目
This dictionary is _____ to me, but that one is _____ .
#33500
A
great help; helpful
B
a great help; of little use
C
important; of few importance
D
very helpful; of no any use
Have you noticed the problem ________ he is now in low spirits?________ come?
#30464
A
where;What
B
that;How
C
in which;For
D
what;As