  We discuss novel features of a new continuum RPA formulated in the
coordinate-space Hartree-Fock-Bogoliubov framework. This continuum
quasiparticle RPA takes into account both the one- and two-particle escaping
channels. The theory is tested with numerical calculations for monopole, dipole
and quadrupole excitations in neutron-rich oxygen isotopes near the drip-line.
Effects of the particle-particle RPA correlation caused by the pairing
interaction are discussed in detail, and importance of the selfconsistent
treatment is emphasized.
