The girl         is singing an English song in the next room is Tom’s sister. 
#67223
A
whom
B
which
C
whose
D
who
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_________, I have to put it away and focus my attention on study this week.
#67712
A
However the story is amusing
B
No matter amusing is the story
C
However amusing the story is
D
No matter how the story is amusing
   difficulties we’ll meet,we must finish the work in time.
#71617
A
However
B
Whatever
C
Whichever
D
Wherever