Betty's never seen a three-D movies, ?
#69001
A
does she
B
isn't she
C
has she
D
hasn't she
推荐题目
E-mail is very popular today. People seldom write letters now,_______?
#69806
A
did they
B
do they
C
didn't they
D
don't they
— There are still many old city walls in Xi’an, _______?—Yes, there are.
#69392
A
are there
B
aren’t there
C
are they
D
aren’t they
