Following the girl, we went into a hall, on ____ walls hung a few pictures of some famous scientists.
#70172
A
its
B
which
C
whose
D
those
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We’ll have to finish it , _____________.
#68653
A
however it takes long
B
however long it takes
C
no matter how it takes
D
no matter how long does it take
At the party, John made up a joke,        people burst out laughing.
#69282
A
on which
B
by which
C
at which
D
from which