Exploring ________space is exciting, yet dangerous. There is ________need for both robots and humans for space exploration.
#11641
A
the; a
B
a; a
C
/; a
D
/; the
推荐题目
— Linda, can you give me some tips on doing this project? — Sorry, but I’m not the person to ______ how the job should be done.
#10608
A
determine
B
persuade
C
recommend
D
influence
The “eat-up” campaign, ______ by Xu Zhijun and his three friends, has raised awareness of food waste all over the country.
#11783
A
started
B
starting
C
to be started
D
to start
There are two thousand students in this college, ______ are from the countryside.
#14247
A
one-third of them
B
one-third of which
C
one-third of whom
D
one-third in which
Lee was faced with the of whether or not to return to his country after he got the doctor's degree in America
#13194
A
situation
B
dilemma
C
environm ent
D
circumstance
Instead of blaming the child who had broken the vase, she gave him a ______smile and let him go.
#10587
A
cautious
B
grateful
C
tolerant
D
wild