The best way to explore _______ countryside is on _______foot.
Most people are _____ bringing down the price of housing because it’s too high for them.
—Hello, Sally. How’s everything going? —__________ .
When argument ________ in a relationship between two people, a usual way of dealing with this is to send messages through a third person.
I don’t think it easy, even if we work hard, the South Korea and the North Korea to sit down to talk at present.
With the environment worsening, the government ______ people for more environment protection.