You look very tired and you must have been preparing for the coming examination yesterday evening, _________ you ?
#64744
A
didn’t you
B
haven’t
C
weren’t
D
hadn’t
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You must have been caught in the traffic jam yesterday, ______you?
#64734
A
weren’t
B
didn’t
C
mustn’t
D
haven’t
---________ is this? --- It’s a photo of my family.  
#60221
A
Who
B
What
C
What’s
D
Who’s
It’s the third time that Li Ming has been to Xi’an , _______? 
#64474
A
isn’t he
B
hasn’t he
C
isn’t it
D
hasn’t it