Father made a promise _______ I passed the examination he would buy me a bicycle.

1. A.
   that
2. B.
   if
3. C.
   whether
4. D.
   that if

Father made a promise_________ I passed the examination he would buy me a bicycle.

A.that          B.if?          C.whether            D.that if

 Father made a promise _______ I passed the examination he would buy me a bicycle.                                             
A. that             B. if            C. whether            D. that

Father made a promise_________ I passed the examination he would buy me a bicycle.
A. that          B. if?          C. whether            D. that if

Father made a promise _______ I passed the examination he would buy me a bicycle.?

A. that B. if C. whether D. that if?