One way for students to prevent H7N9 flu virus is to openthe windows of the classroom to allow the air to ________.

All visitors to this village_________ with kindness

The 2012 Nobel Prize in Literature _____ to Mo Yan, Chinese writer ,whose novel Red Sorghum was successfully filmed in 1987

The telephone lines werebrought down by the _____ trees and branches

The stream________during the hot summer, but it is full of water in spring.