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.

Do tell me the way you think of ______ the problem as soon as possible.

Walking and running are the oldest and newest, excellent _________ exercise for all ages and fitness levels.

Don’t leave her_____ outside in the rain.

Particular attention must be paid ______ welfare, especially in the poor area.