-Does your sister ___________ a CD ?
-Yes, she ___________.
A:have; has
B:have; does
C:has; has
D:has; have
Ann会跳绳怎么说?
五一班有男生20人,比女生少5人,男、女生人数各占全班人数的几分之几?
因式分解:x﹣x2=____ .