_________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
The judge thought that the evidence was not ________ to the case.
#19428
A
similar
B
accessible
C
available
D
relevant
When I took his temperature,it was two degrees above ______.
#20598
A
average
B
ordinary
C
regular
D
normal
The pianos in another shop will be________, but________.
#17674
A
cheaper;not as better
B
more cheaper;not as better
C
cheaper;not as good
D
more cheap;not as good