In 1948, three American scientists invented ____ transistor, which is ____ small electronic device to control an electric current.
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the; a
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a; a
C
the; the
D
a; the
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—What about ____ book? —It’s too difficult ____ book for beginners.
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the; the
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a; a
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a; the
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the; a
.-----It’s reported that over 1 billion people watched the live opening ceremony of______2010 South Africa World Cup on TV. -----Yes, news came as______ shock to me.
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the; the
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/; a
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the; a
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a; the
Living in _______ ever increasingly fast-paced world, we are facing greater competition, so we must take ________ advantage of every opportunity to develop.
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an; the
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an; /
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the; an
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the; /
Unexpectedly, my hometown experienced _____ most violent snowstorm in _______ November, causing _______ great loss.
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a; /; the
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a; the; the
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the; /; a
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the; the; a
What _____ surprise! He has won the game without making great ______.
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a; progress
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the; efforts
C
a; efforts
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the; progress