_________several times, but Mary still has no idea of how to do it properly. 
#19683
A
Being shown
B
Having shown
C
Having been shown
D
I’ve shown her
推荐题目
 Medicine should not be kept where it is _______ to children. 
#17720
A
addicted
B
accessible
C
attractive
D
aggressive
The doctor assured the patient that there was ______ with her, but she could not help worrying.
#20647
A
seriously wrong nothing
B
nothing serious wrong
C
nothing seriously wrong
D
serious nothing wrong
There is a ______ cup on the table.
#20905
A
nice new big plastic
B
new plastic big nice
C
nice big new plastic
D
new nice plastic big