E-mail is very popular today. People hardly post letters, _________?
#69446
A
did they
B
do they
C
didn’t they
D
don’t they
推荐题目
It is not right ____ in public places. 
#70995
A
smokes
B
smoking
C
smoked
D
to smoke
She feels unhappy, _____?
#70746
A
doesn’t she
B
does she
C
isn’t she
D
is she
There are few students in the park, _________?
#71188
A
are there
B
are they
C
aren’t there
D
aren’t they
The old man needs our help, ______ ?
#69810
A
needn’t he
B
need he
C
doesn’t he
D
does he