A set of keys _____ on the table. Can you see _____ .

A . is, it         B. is, them         C. are, it       D. are, them

  A set of  keys       on the desk.

A. are           B. is           C. am         D. be

Here _____a set of keys.The keys _____Bob’s.

A.is,are       B.are,is       C.is,is          D.are,are

Here ______a set of keys and here ______my books.

A. is, is      B. is, are    C. am, is     D. are, are