From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
—It’s a lovely day, isn’t it?—Yes, I love ___.
We’d very much appreciate ___ if you could help us.
—Keep ___ in mind that you have to be here on time.—OK, I will.
The public ___ of the environmental problem will make the government take it seriously.
Try on both shoes and walk around to ensure a comfortable fit ___ you know your shoe size.