26. They built the first hydroelectric power plant in Niagara Falls in 1879.
A. In 1879, they was built the first hydroelectric power plant in Niagara Falls
B. The Niagara Falls was built in the first hydroelectric power plant in 1879.
C. The first hydroelectric power plant in Niagara Falls was build in 1879.
D. The first hydroelectric power plant was built in Niagara Falls in 1879.
27. He is not a poor man any more, but he becomes a rich businessman.
A. Although being a rich businessman, he’s still poor.
B. He is used to being a rich businessman, there’s no way that he becomes a poor man.
C. He used to be a poor man, but now he doesn’t any more.
D. In spite of his richness, he becomes a poor man any way.
28. Although coal is the most polluting of fossil fuels, it is still the largest sources of energy worldwide.
A. Despite of being the most polluting of fossil fuels, it is still the largest sources of energy worldwide.
B. Coal is the most polluting of fossil fuels, but it is still the largest sources of energy worldwide.
C. Despite being the most polluting of fossil fuels, coal is still the largest sources of energy worldwide.
D. However coal is still the largest sources of energy worldwide, it is the most polluting of fossil fuels.