I heard that some patients who had undergone laser eye surgery experienced sudden losses of vision, ______?
#64796
A
didn’t I
B
hadn’t they
C
didn’t they
D
isn’t it
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---_______ are these apples ? ---Ten yuan . 
#60291
A
What number
B
How much
C
How many
D
What color
—Jack, you water the flower today, ___?— But, dad, I watered it yesterday.
#64804
A
do you
B
will you
C
didn’t you
D
don’t you