Upon graduation he asked to be sent to _______________.

  A. where he is most needed      B. where he needed

  C. where he is mostly needed     D. where is he mostly needed

Upon graduation he asked to be sent to _______________.

  A. where he is most needed      B. where he needed

  C. where he is mostly needed     D. where is he mostly needed

Upon graduation he asked to be sent to where _____ needed.

A. he is most 　 B. he needed　 C. he is mostly 　 D. is he mostly