( )1. This is ____ eraser and that’s ____ring.
A. a, an B. an, an C. an, a D. a , a
( )2. ---Is this bag _______? ---Yes, it’s ________.
A. her; hers B. hers; mine C. yours; mine D. your; my
( ) 3 . This is_____ sister, _____ name is Mary, and ____ is a nurse in the hospital.
A. my, my, she B. my, her, she C. I, her, she D. I, she, her
( ) 4. Thank you for ____ us some help.
A. giving B. give C. to give D. gives
