Misunderstandings __________ from lack of social communication, unless __________ properly, may lead to serious problems.
More than 70 percent of the playground in our school __ covered by water now.
Shanghai is __ the east of Nanjing.
The Great Wall took _ a new look after the People\s Republic of China was founded.
Tom is not used to __ in public.
___ of the students in our school are girls.