We’ve just heard a warning on the radio _______ a typhoon may be on its way.
#68290
A
what
B
when
C
which
D
that
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Living things are dying out quickly. Let’s ask ____ destroying them in the past years.
#73211
A
what part people have been playing
B
people have played in
C
what part people have played in
D
people have been playing what part