The space station spins slowly in ________ space to imitate ________ pull of the earth’s gravity.
#9689
A
the; /
B
/; the
C
/; /
D
the; the
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They haven’t made ________contact with each other since they had ________quarrel two weeks ago.
#9594
A
the; the
B
不填; a
C
a; the
D
不填; the
I need to get another dictionary, because ______ cover is dirty and ______ page is missing．
#8878
A
a; a
B
a; the
C
the; a
D
the ; the
There was ______ time when everything to do with ______ nature could keep Anne spellbound.
#9624
A
a; the
B
the; a
C
a; \
D
the; the
Everybody has ______ responsibility to save water, if future generations are to enjoy _____ similar standard of living to the one we enjoy now.
#8276
A
the; /
B
a; a
C
/; the
D
a; the
Jumping out of ________ airplane at ten thousand feet is quite ________ exciting experience.
#8023
A
an; an
B
/; the
C
/; an
D
the; the