I called the airline to ______ my flight reservation a week before I left for Canada.

A. expand            B. book              C. confirm           D. strengthen

I called the airline to ____ my flight reservation a week before I left for Canada.

A. obtain B. admit　　 C. confirm　 D. appoint

I called the airline to _________ my flight reservation a week before I left for Canada．

1. A.
   confirm
2. B.
   admit
3. C.
   appoint
4. D.
   obtain

I called the airline to ______ my flight reservation a week before I left for Canada.

1. A.
   expand
2. B.
   book
3. C.
   confirm
4. D.
   strengthen