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
A
a , /
B
an, /
C
the, an
D
an, the
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Beginning college is exciting: many of us can be easily excited by ___ details of running ______ well-balanced life.
#9352
A
/; the
B
the; a
C
/;a
D
the; /
I was told that _______ 10:20 flight would take us to Shanghai in time to reach _______ Fudan University.
#8495
A
the; /
B
the; a
C
a; the
D
/; the
It makes _______ big difference to keep calm when giving _______ first aid.
#7672
A
a, /
B
/, the
C
a, the
D
/,a
By _____ 1600’s Shakespeare was able to make _____ use of _____ wider vocabulary than ever before.
#9693
A
the, the, a
B
a, /, a
C
the, / , the
D
the , / , a