In a new study of African elephants，researchers have four distinct characters that are among a group.
#66749
A
convinced
B
identified
C
differed
D
existed
推荐题目
I would like to buy an apartment, large, comfortable and , easy to work by bus.
#66736
A
in all
B
after all
C
first of all
D
above all
. The dictionary published by Oxford University Press recently has really ______ because it is of great use to the learners of English.
#84162
A
taken away
B
taken down
C
taken off
D
taken out
The extra room _______ very useful when we had visitors.
#70883
A
was proved
B
proved
C
has been proved
D
has proved
Why not ________ an order ________ a TV set of this new type?
#83078
A
placing; on
B
place; on
C
place; for
D
placing; for
People in ancient times ______ series of important events so that we now have what is called history.
#74211
A
went down
B
kept down
C
set down
D
broke down