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
Mr Black must be worried about something. You can ____ it from the look on his face.
#82276
A
reason
B
recognize
C
read
D
realize
This dictionary is very useful. It has ___ many problems about words and idioms for me.
#81986
A
looked up
B
kept up
C
taken up
D
cleared up
The USA once ___ ___ war against Japan in 1945 and now it is bombing Libya.
#71062
A
announced
B
declared
C
commented
D
stated
All possible means __________.However, nothing can __________ Jack from adventuring in that mysterious forest.
#63982
A
has tried; stop
B
has been tried; keep
C
have tried; keep
D
have been tried; prevent
Our team members are in low spirits, but I’m sure things will start to _____ in a week.
#73092
A
rise up
B
hold on
C
hang out
D
pick up