Robbie Wilde has been enjoying his life as a(n) ____. He was born with perfect ____but is now, completely ___ in his right ear and can hardly hear in his left. He grew up in a(n) ____home environment and started deejaying at age___ With a strong desire to perfect his skills,,he asked a well-known DJ for ____ .He has been working hard and does not want his skills recognized simply because people have ____ for his disability. In this way, he sets a good example for other young people in chasing their ____.

I am an aide to Premier Li Keqiang. This morning, he was scheduled to meet Marcia McNutt， ___or 30 minutes. Before the meeting, the Premier instructed me to collect data to demonstrate China's.____ in addressing _____ Dr. McNutt arrived early. They had ___at the reception hall. The discussion went so well that neither realized ____ had run out (用完了). ____,lhad to interrupt them with a(n)____  note for the Premier. He____ me. Dr. McNutt was clearly ____.And the national media coverage(媒体报道)of this meeting impressed her even more. She later commented that all these sent strong ____.as to how China sees ____ as critical to its future well-being.

In his 2003 speech at Rice University's Energy & Nanotechnology Conference, the late Nobel Laureate Richard Smalley highlighted the ___10 problems for the next 50 years. In his list, ___ sits at the top, and water comes next. Now, with the price of solar power going down, the dawn of a new energy ___ is just around the corner. As a result, _____ is going to be the greatest challenge for humanity.

But the water problem is _____. First, unlike coal and oil, water can not be ____ . second, water is _____ with every other sector of society. Third, while water demands are growing, climate change is intensifying droughts and floods and water supplies are _____ There are solutions, such as building water-transfer aqueducts, hydroelectric dams, and desalination plants. But they may be incredibly _____.It will ______for scientists to find affordable solutions to the water problem. Before that, everyone should do his or her bit to ______ water.