Question

The earthquake and the heavy losses ______contributed to disabled this family to afford his education.

1. A.
   that
2. B.
   it
3. C.
   what
4. D.
   which

Answer 1

B
考查定语从句。the heavy losses 是先行词，________contributed to是定语从句，that作to的宾语，省略了，从句缺少主语，指代The earthquake用it。故选B。