_____ 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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He hasn’t slept at all for three days. _____ he is tired out.
#93202
A
here is no point
B
here is no need
C
t is no wonder
D
t is no way
I'll come to see you if _____.
#94710
A
you're convenient
B
it is convenient for you
C
you feel convenient
D
it is convenient with you