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
They often use wood as fuel to ________ coal.
#67757
A
take place
B
take the place of
C
in place of
D
instead of
In everyday communication, information ___ by gestures is often misinterpreted.
#65822
A
suggested
B
conveyed
C
expressed
D
signaled
Dinner’ll be ready in a few minutes. You’d better ______.
#81623
A
wash
B
wash himself
C
get washed
D
washing
People exposed to radiation are more _______ to suffer from certain forms of cancer, which can be ______ but can’t be ______at present.
#66054
A
more likely; treated; cured
B
more probable; treated; cured
C
more possible; cured; treated
D
more likely; cured; treated