_____ 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
推荐题目
Who would you rather ______ the report instead of you？
#94847
A
have write
B
have to write
C
write
D
have written
I think that this meal was well worth _______ was charged for it.
#95065
A
that
B
what
C
which
D
how many
-- How long do you think it will be ______ the bus arrives here?-- No more than five minutes.
#92500
A
when
B
before
C
since
D
after
Jamaican Usain Bolt was reported ______the world record of 100m in 9.69 seconds, thus winning his first gold medal.
#92289
A
breaking
B
having broken
C
to be broken
D
to have broken