(2013·安徽卷)From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
It was in so poor light that I couldn't _________ what the newspaper said.
In the reading room, we found her_______at the desk, with her attention______on a book.
---Time and tide wait for no man. ---________. We should value our time.
The accident was ________ the driver’s careless driving rather than bad weather.
Under no circumstances_____ his home turned into a battlefield between the forces of light and darkness.