--- What are you doing, Lily?--- I’m sticking some pictures of flowers ________ the scrapbook.A. to B. in C. on
-- ? --They are my books.
Those are my __
--Hello! 565-4327. Who's ? -- is Mary.
--Mom, these are my friend Peter and __ brother Bill. --Welcome to our home. Come in, please.
Anna is not my sister. __ my cousin.