Our attitude towards life is________makes the difference between our being happy or not.

A．that          B．whether          C．what             D．which

His attitude towards us is not ________ of a comrade.

1. A.
   which
2. B.
   this
3. C.
   that
4. D.
   one

Our attitude towards life is________makes the difference between our being happy or not

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