  We present a general idea to construct methods for multi-qubit quantum
teleportation between two remote parties with control of many agents in the
network. Our methods seem to be much simpler than the existing method proposed
recently (Phys. Rev. A {\bf 70}, 022329(2004)). We then demonstrate our idea by
using several different protocols of quantum key distribution, including Ekert
91 and the deterministic secure communication protocol raised by Deng and Long.
