— Is it my age ______the boss minds?

—I’m afraid so. He will consider ______ necessary to have an experienced assistant.?

A. which；it          B. that；it             C. which；that           D. that；that?

— Is it my age ______ the boss minds?

—I’m afraid so. He will consider _____ necessary to have an experienced assistant.

— Is it my age ________the boss minds?

—I’m afraid so. He will consider ________ necessary to have an experienced assistant.?

---Is it my age ____the boss minds?

---I'm afraid so.He will consider ______ necessary to ave an wxperienced assistant.

--- Is it my age ________the boss minds?
--- I’m afraid so. He will consider ________ necessary to have an experienced assistant.

1. A.
   which；it
2. B.
   that；it
3. C.
   which；that
4. D.
   that；that