Watch the video and fill in the gaps.

High-speed trains are fast, ... . They can be found all over the world in ... . But who ... for the world's best high-speed rail system? China. In little more than a decade, China has built almost 40,000 km of high-speed rail, connecting nearly ... . China now accounts for roughly two thirds of the ... , outstripping both Japan and the EU. Meanwhile, in Europe, only 11,000 km of high-speed rail are ... , according to the Worldwide Railway Organization. And forget about the US - ... .