--Are these your books?--______.
#59805
A
Yes ,these are.
B
No, they are.
C
No, it isn’t.
D
Yes, they are.
推荐题目
______do you go swimming ?   Sometimes.
#60011
A
How often
B
How long
C
how many
D
How old
—Jack, you water the flower today, ___?— But, dad, I watered it yesterday.
#64804
A
do you
B
will you
C
didn’t you
D
don’t you
-----“I think the teacher is wrong, _____?” ------“No, I don't think so.”
#65393
A
don't you
B
don't I 
C
doesn't he
D
doesn't she