I appreciated      the opportunity to study abroad two years ago.

A.having been given                 B.having given

C.to have been given                D.to be given

 I appreciated ____ the opportunity to study abroad two years ago.

A. having been given            B. having given

C. to have been given            D. to be given

I appreciated________the opportunity to study abroad two years ago.

A．to have given  B．to have been given

C．having given  D．having been given

 I appreciated ____ the opportunity to study abroad two years ago.

A. having been given            B. having given

C. to have been given            D. to be given

 I appreciated ____ the opportunity to study abroad two years ago.

A. having been given   B. having given  C. to have been given  D. to have given

I appreciated ____ the opportunity to study abroad two years ago.

A.    having been given            B. having given        

C.   to have been given            D. to be given

I appreciated ____ the opportunity to study abroad two years ago.

A. having been given   B. having given  C. to have been given  D. to have given

I appreciated ____ the opportunity to study abroad two years ago. 
A. having been given      B. having given     C. to have been given      D. to have given 

 I appreciated ____ the opportunity to study abroad two years ago.

A. having been given   B. having given  C. to have been given  D. to have given