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Many offices and homes have air (a)   to stay cool during hot weather.

A ______ ______ ensures that bicycles have a safe space to ride on the road.

(a)  

Due to the accident, there was a major ______ _______ on the main road during the morning commute.

(a)  

The (a)   helped extinguish the flames in the burning building.

When I moved to a new country, I experienced ______ ______ because everything felt so unfamiliar.

(a)  

The ______ ______ changed from red to green, allowing cars to start moving again.

(a)  

Using a pedestrian (a)   is the safest way to cross a busy road.

The (a)   conditions were so bad in the village that many people moved to the city.

Forest (a)   can destroy large areas of woodland and harm wildlife.

The company decided to improve the (a)   by adding better lighting and ergonomic furniture.