You’d better book the tickets as early as possible, ________ they will be sold out soon. 
#56032
A
and
B
but
C
so
D
or
推荐题目
---________?---I failed the exam.
#55538
A
Can I help you
B
Why are you so happy
C
What’s the matter
D
Can you help me
______ he is very busy, Li Ming always helps others.
#56088
A
Although
B
If
C
Unless
D
Since