----- Nội dung dịch tự động từ ảnh ----- Ex. 3 Fill in each blank in the sentences with the correct word from the box. tunnel underpass skytrain tram railway clearance walkways traffic 1. As planned, the urban elevated from June 1, 2017. Cat Linh-Ha Dong in Ha Noi would be put into operation 2. If there is no delay in progress, by mid-2017, Hanoian residents will be able to use the their travel. for 3. However, the project of the urban skytrain is facing the risk of being unable to be completed by the deadline, due to difficulties in site 4. A flyover at Hang Xanh crossroads in Ho Chi Minh City has helped reduce the city's northeast gateway. 5. While the trains in Sai Gon were powered by steam, the by electricity. 6. They asked foreign companies to design a 7. The Trung Hoa 8. A huge network of elevated activities. congestion at systems in Ha Noi operated through the Hai Van Pass. in Ha Noi forms the city's first four-layered intersection. in Hong Kong helps visitors walk across the city easily