Many citizens urged their government to take measures to cut _______ their carbon emission to reduce greenhouse effects.

The opening between walls was very narrow; it’s very hard for soldiers to _______ through.

Many areas were stricken by the typhoon, and it was quite difficult to ______ the exact losses.

When I walked past the street, seeing the children playing happily, their happy laughter _______memories of my childhood. 

Be careful with the paper for it ____________.