He _______ toward the door when suddenly his junior brother opened it unexpectedly.
__________ with conducting an interview by QQ online, a face-to-face interview in person can provide people with more reliable details.
Recently a survey __________ prices of the same goods in two different supermarkets has caused heated debate among citizens.
Tmall. com is booming, especially during the festivals,__________ price and variety, it is superior to other online shopping sites, like amazon. com and 360buy. com
When __________ such a difficult problem, he didn't know what to do.
__________ with so many difficulties, I had difficulty __________ my dream of running a store of my own.