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
The number of the students in our class __________ to 54.
#68910
A
picks up
B
adds up
C
takes up
D
turns up
As this is a very casual get-together, you can tell them to ______ however they feel like to.
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A
dress
B
wear
C
put on.
D
have on
I will never understand how it that you were an hour late on such a short journey.
#71742
A
came about
B
came across
C
came out
D
came up with
I wonder if your brother will go to the party. If he does, so ______mine.
#72929
A
is
B
do
C
does
D
will
The Governor demanded that all the proposals _______ on May 1st.
#75536
A
must be submitted
B
be submitted
C
submitted
D
were submitted