To find out _______ young people think about the future of urban life, a teacher in the US. asked his students to think ______ they would run a city of 50,000 people in 2025.
| A．what; how | B．how; what | C．what; what | D．how; how |
______ by a greater demand of vegetables, farmers have built more green houses.
| A．Driven | B．Being driven | C．To drive | D．Having driven |
The crowd cheered wildly at the sight of liu xiang, who was reported _______ the world record in the 110-meter hurdle race.
| A．breaking | B．having broken | C．to have broken | D．to break |
—Come on, please give me some ideas about the project.
—Sorry. With so much work _______ my mind, I almost break down.
| A．filled | B．filling | C．to fill | D．being filled |
The wild flowers looked like a soft orange blanket _____ the desert.
| A．covering | B．covered | C．cover | D．to cover |
He hurried to the booking office only_________that all the tickets had been sold out.
| A．to tell | B．to be told | C．telling | D．told |