Lily             Sam likes popular songs, so they went to Zhou Jielun’s concert together last night. 
#55420
A
Both, and
B
Either, or
C
Not only, but also
D
Neither, nor
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You should keep working hard ____ you have passed the exam. 
#56116
A
since
B
because
C
so
D
even though
  ________ he fails the job interview ?
#56247
A
When
B
What if
C
Why
D
What about