Astronomers and scientists think that a black hole is a region of space ______ which matter has fallen and _______ which nothing can escape.
#76704
A
into; from
B
towards; towards
C
out of; from
D
through; through
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Lucy is a hardworking and physically active student, ________ has both marks and a fit body.
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A
one who
B
the one
C
whom
D
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He wrote a letter ________ he explained what had happened in the accident.
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A
what
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which
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as
I will never forget the day _____ we worked together in London．
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A
when
B
on that
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which
D
while
In a sport team each player has a clear role, and there are few occasions ______ members are confused or uncertain of their roles.
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A
why
B
where
C
when
D
in which