There______ a number of natural mysteries in the world that even make scientists ______.
#76672
A
exists; confusing
B
are existed; confused
C
exist; confused
D
exist; confusing
推荐题目
Life is___,but there is no limit_____.
#66074
A
limited，to learn
B
limit，to learn
C
limited, to learning
D
limited，of learning
—The sports meeting will be ________ till next week because of the bad weather. —I’ve got it.
#73542
A
put off
B
given up
C
put away
D
given out
——You looked upset. What’s the matter?——My plan was _____ again.
#65376
A
turned on
B
turned down
C
turned up
D
turned off
Juliana worked harder to ______ for the time she had lost when she was ill.
#81385
A
keep up
B
catch up
C
make up
D
take up
They didn’t ________ the true meaning of what the boss had said, and thus their task almost completely failed.
#72106
A
seize
B
catch
C
take
D
grasp