_____ many times, but he still doesn’t know how to operate the machine properly.
#92970
A
Although I have shown him
B
I have shown him
C
Having been shown
D
Having shown
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 ____ we move the picture over there? Do you think it’ll look better?
#93050
A
What about
B
How far
C
What if
D
How come
_________is no possibility __________Bob can win the first prize in the match. 
#92838
A
There;that
B
It;that
C
There;whether
D
It;whether
In the forest____, who made no contact with the outside world.
#93232
A
living a couple
B
were a couple living
C
did a couple live
D
lived a couple