Not until he left his home __________ to know how important the family was for him.
Many people believe that hunger is only a problem in the developing world. ______, it is a problem all over the world.
Give me an undisturbed hour and I ______ the work Tom has left unfinished.
We have been seeing good cooperation between tourism industries across the Taiwan Straits ______ shape since July, 2008.
A lot of attention ______ to greenhouse gas emission. Look at those environmental posters.
It was while he was visiting his uncle in a mountain village ______ he got the inspiration for his new novel.