6. Standard time in Beijing is eight hours ____ Greenwich Mean Time(GMT格林威治标准时间).
Climbing Mount Everest great skills and not without risk.
I don’t when I fail_______ something.
Not all ads are used to promote a product or to increase a company’s profits. Which is the following statement correct?
his contribution to botany, Joseph Banks had a flower _______him.
Bank was the first crops from one continent to another________, helping to develop local economies with these new imports.