Original sentence: Airbus has recently offered a derivative of the A330 using the  same turbofans as being developed for the 787 (modified to generate bleed air as with the proposed 747 Advanced).As at June 24, 2005, Airbus had sold 105 A350s to four airlines and two leasing companies.This proposed new jet, the A350, will also make widespread use of lightweight materials (up to 60% by weight )
Edited sentence: Airbus has recently offered a derivative of the A330 using the 787's next generation turbofans (modified to generate bleed air as with the proposed 747 Advanced).Since its announcement, Airbus has sold 105 A350s to four airlines and two leasing companies.This proposed new jet, the A350, meets the 787's widespread use of composites and advanced systems, and will match the 787's performance and reduced operating costs