He’s never been to a foreign country, ________?
#70189
A
isn’t he
B
is he
C
has he
D
hasn’t he
推荐题目
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
Betty had nothing to do last Sunday afternoon, ____________? 
#68816
A
hadn't she
B
had she
C
didn't she
D
did she
This math problem is too difficult. Can you show me________, George?
#70867
A
what to work out
B
to work it out
C
how to work it out
D
how to work out it