_____ 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
According to a recent U.S. report, children spent up to 25 hours a week _______ TV.
#92921
A
watching
B
to watching
C
to watch
D
watch
Jack must be helping his grandma to water the flowers,______?
#93967
A
is he
B
isn’t he
C
must he
D
mustn’t he
— Do you know Jim quarreled with his mother? — I don’t know. _____.
#93500
A
Nor don’t I care
B
Nor do I care
C
I don’t care neither
D
I don’t care also
He is not selfish at all; instead he is always _________ to help others in trouble.
#92031
A
possible
B
likely
C
probable
D
willing
－What do you think of the party last night?－Wonderful! It’s years I enjoyed myself so much.
#92755
A
after
B
when
C
before
D
since