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
推荐题目
It’s generous_____ him to donate_____ money to UNICEF.
#70741
A
of, so much
B
for, so many
C
of, so many
D
fro, so much
It’s really cold today, ______ ?
#71017
A
does it
B
doesn’t it
C
isn’t it
D
is it