In our factory there are 2,000 workers, and two thirds of _______ are women.
After five hours’ drive,they reached________they thought was the place they had been dreaming of.
Professor Backman took up scientific research for decades,and this is________he devoted all his life to.
Sorry I’m so late,but you cannot imagine________great trouble I took to find your house.
Water,which seems so simple and common,is________makes life possible.
—You know,I’m poor in Chinese,you are not good at English,and...—That’s________we should help each other.