People in China used to keep records by putting a number of stones together, ___?
#65325
A
usedn’t they to
B
did they
C
used to they
D
didn’t they
推荐题目
--Were there any seals in the zoo?   ---________.
#60310
A
Yes, there weren’t
B
No, there weren’t
C
No, there were.
D
Yes, there was.
Bob had little idea that his wife was in danger, _____?
#64593
A
didn’t he
B
did he
C
wasn’t she
D
was she