Designed by Populous and Foster and Partners, the stadium is crowned by a 134-metre-high (440 ft) Wembley Arch which serves aesthetically as a landmark across London and structurally with the arch supporting over 75% of the entire roof load. The stadium was built by Australian firm Multiplex at a cost of 798 million (1.09 billion today). Contrary to popular belief, Wembley Stadium does not have a retractable roof which covers the playing surface. Two partially retractable roof structures over the east and west end of the stadium can be opened to allow sunlight and aid pitch growth.
Based on the above text, what's the best answer to this question: can they close the roof at wembley stadium?
yes