When astronauts return to the earth’s atmosphere, helicopters fly to________they would land, ready to collect them.
#34720
A
what
B
where
C
which
D
that
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Nowadays the belief has become common ______ sea food and fruit rich in vitamin C should never be eaten at the same meal.
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that
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how
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when
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The new system needs to be in operation for five months ________ it can be updated.
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as
B
while
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Dr. Black comes from either Oxford or Cambridge. I can’t remember _____.
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A
who
B
there
C
which
D
what