A scheme for teleportation of an arbitrary two-qubit state using a four-qubit linear cluster-class state is proposed. Quantum teleportation can be successfully realized with a certain probability if the receiver can adopt an appropriate collective unitary transformation after receiving the sender′s Bell-state measurement information. The scheme is more practical than previous ones using maximally entangled states as the quantum channel. In addition, an important conclusion is obtained from the above scheme that a maximally four-qubit entangled state (cluster state) is extracted from a single copy of the cluster-class state with the same probability as the teleportation.