Exploring _____space is exciting, yet dangerous. There is _____need for both robots and humans for space exploration.
#10188
A
the; a
B
a; a
C
/; a
D
/; the
推荐题目
Tom’s parents were very worried because ___little effort he made could hardly achieve the goal to be ___ captain of the team.
#9073
A
a; the
B
the; /
C
/; /
D
a; /
— Do you know ___________ woman in pink over there?— Yes. She is ___________ office worker of Hilton Hotel.
#8836
A
a; an
B
the; the
C
a; the
D
the; an
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; /
