Shackleton kept his promise ____he would return to Elephant Island ____the crew had been left.
#67356
A
which; that
B
that; which
C
what; where
D
that; where
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________ is often the case with human beings, many animals sleep a lot when young, but sleep much less when they get older.
#67127
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Which
B
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C
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The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
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what
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