The most important thing about cotton in history is _____ part that it played in _____ Industrial Revolution.
Jack Ma is the richest man in China now and has ______ $3billion to invest in environment and education.
My aunt is thought very fashionable,for she is always wearing a sweater______ on TV these months.
Social and economic development has contributed to an increasing______ for future.
Today APEC is playing a more important role in the world stage,______ purpose is to promote economic cooperation in the Asia-Pacific area.
Ning Zetao,who won a total of four golds at the 2014 Incheon Asian Games,____ himself as a new swim star.