It will make ______big difference if this experiment becomes ______ success.
#8707
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a; a
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a; the
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a; /
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While other scientists are keeping____eye on changes in the H5N1 bird flu strain, the scientists in England are working on vaccines, in case it becomes highly infectious in ____humans.
#9824
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a , /
B
an, /
C
the, an
D
an, the
World Wide Web was invented in 1991 by English scientist ,Tim Burners-lee.
#9411
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\; an
B
The; an
C
The; the
D
A; the
I earn 10 dollars ____ hour as ____ supermarket cashier on Saturdays.
#10473
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a; an
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the; a
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an; a
D
an; the
After the violent earthquake, Japan has been still in ______ trouble and the whole world seems to be at ______ end.
#8584
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the; an
B
the; /
C
/; an
D
/; the
We don’t think the experiment is _______ failure. At least we have gained _______ experience for future success.
#8406
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the; a
B
a; an
C
a; /
D
/; the