________ to this campaign for wiping out fever in Calcutta and save three lives for only $5, send your donation to：A.A.C, P.O.BOX 2716,GPO, New York, NY 10116．

1. A.
   Contributing
2. B.
   Contributed
3. C.
   To contribute
4. D.
   For contributing

 to this campaign for wiping out fever in Calcutta and save three lives for only $5, send your donation to: A.A.C., P.O.BOX 2716,GPO, New York, NY 10116.

   A．Contributing   B．Contributed     C．To contribute  D．For contributing