--Mom, these are my friend Peter and __ brother Bill.
--Welcome to our home. Come in, please.
A. my B. your C. his D. her
Anna is not my sister. __ my cousin.
A. He B. He's C. She D. She's
Lin Hai and Dave __ his good friends.
A. are B. be C. am D. is
Are Kate's ?
A. this; book B. that; book C. these; books D. those; book
Is that your __?
A. a picture B. picture C. pictures D. nice pictures
—Is this ________ ruler? —Yes，it’s her ruler．
A．your B．your sister’s C．your brother’s
