（1）语法填空Started at the height of the economic boom and built by some 12,000 laborers, the w

（1）语法填空
Started at the height of the economic boom and built by some 12,000 laborers, the world's tallest building opened on January 4, 2010 in Dubai.     1     $1.5-billion tower reaches up 828 meters, 200 storeys into the sky. It surpasses the next highest building, Taiwan's Taipei 101,     2     more than 300 meters.
Burj Dubai, whose opening     3    (delay) twice since construction began in 2004, will mark another milestone for the deeply indebted emirate（酋长国）.
Dubai, one of seven members of the United Arab Emirates, gained a reputation for excess with the creation of man-made islands     4    (shape) like palms and an indoor ski slope in the desert.
With investor confidence in Dubai     5    (bad) frustrated by the emirate's announcement in November     6     it would seek a debt standstill for one of its largest enterprises, the Burj Dubai is seen     7     a positive start.
The project has been examined carefully by human rights groups, who have objected to its     8    (treat) of laborers, as well as by environmentalists     9     said the tower would act as a power vacuum, increasing the city's already massive carbon footprint.
But despite the criticism, many say the tallest building, believed     10    (cost) $1.5 billion to build, is an architectural miracles.