BK24 L1 Mixed Review

A large quantity of __________ is needed to produce one ounce of pure gold.

If you stir yellow and red paint together, the mixture will __________ orange paint.

When you __________ oil into your car’s engine, wear gloves to keep your hands clean.

The weather __________ a lot in this city. Yesterday it was very cold, and today it’s hot.

The scientist discovered a three-thousand-year-old cooking pot made of __________.

Although there were only three carpenters, they __________ the house in one week.

Oxygen is the most __________ element in a person’s body.

The soldiers __________ hand signals to communicate without talking.

The US has a(n) __________ public highway system.

Soldiers do physical training frequently to maintain _________ physical fitness.