，his suggestion is not helpful，though it sounds very interesting．

       A．Generally speaking        B．On the contrary

       C．In particular                   D．To be honest

       ，his suggestion is not helpful，though it sounds very interesting．

      A．Generally speaking      B．On the contrary

      C．In particular               D．To be honest

      ，his suggestion is not helpful，though it sounds very interesting．

      ，his suggestion is not helpful，though it sounds very interesting．

1. A.
   Generally speaking
2. B.
   On the contrary
3. C.
   In particular
4. D.
   To be honest