The little girl was jumping __________ in the kindergarten, waiting for her mother.
#75666
A
upside down
B
back and forth
C
back to forth
D
up and down
推荐题目
Bad habits are not always easy to        ; it needs your determination.
#71157
A
remove
B
be removing
C
be removed
D
be moved
The girl’s sudden death _____ the police’s _____ this matter.  
#75710
A
drew; attention to  
B
put; mind on  
C
drew; mind to     
D
focused; attention to
Go back home now, Mary. Your parents ______ your safety.
#63864
A
are concerned about
B
are concerned with
C
are concerned on
D
concern of