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Exploring ________ space is exciting, yet dangerous. There is _______need for both robots and humans for space exploration.
#8457
A
the; a
B
a; the
C
/; a
D
/; /
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 The winning of hosting _______ 2014 Youth Olympic Games is ______ victory not only for Nanjing residents, but for ________ people of the whole Chinese nation.
#8451
A
the; a; the
B
a; the; a
C
a; a; the
D
the; the; a
There was       time       I hated to go to school.
#8456
A
a; that
B
a; when
C
the; that
D
x; when
Shy as he would be in _______ public, he is getting more confident in making _______ public speech.
#8691
A
/; a
B
/; the
C
a; the
D
the; a
Some people argue using ____________ nature to meet our own needs may spell disaster, unless we start to look around and understand how _________ clean environment benefits us all.
#9287
A
/; a
B
the; the
C
the; a
D
a; a
____ horse is ___ useful animal.
#9934
A
A, an
B
The, the
C
A, the
D
The, a