You used to be quiet, ________ you? 
#69471
A
used
B
did
C
didn’t
D
aren’t
推荐题目
__ is really hard __ them to climb Mount Tai. 
#69186
A
This, to
B
It, to
C
This, for
D
It, for
Of the two cities. I think Chongqing is ______ one.
#70058
A
hotter
B
the hotter
C
the hottest
D
hottest
He can hardly stay awake because he is so tired. ______?
#68578
A
does he
B
isn't he
C
can't he
D
can he