Inference

Keller looked out the window. The house looked so lonely. Keller's father put the last suitcase in the trunk and started up the car. Shaggy, his dog, put his head on Keller's lap, like he understood how Keller was feeling. "It's okay Shag," he said, "Dad says we will like California." What can the reader infer is happening?

. Before the 1800's people didn't have right or left shoes. They had shoes of just one shape that they used for both feet. When people first saw right and left shoes, they laughed. They called them "crooked shoes." "What a silly idea," they said. You can tell that shoes before 1800:

What logical inference can be made from this sentence: Illegible handwriting does not indicate weakness of character, as even a quick glance at the penmanship of George Washington, Franklin D. Roosevelt, or John Kennedy reveals.

The toothbrush as we know it today was not invented until 1938. However, early forms of the toothbrush have been in existence since 3000 BC. Ancient civilizations used a "chew stick," which was a thin twig with a frayed end. These 'chew sticks' were rubbed against the teeth. The bristle toothbrush, similar to the type used today, was not invented until 1498 in China. The bristles were actually the stiff, coarse hairs taken from the back of a hog's neck and attached to handles made of bone or bamboo. Boar bristles were used until 1938, when nylon bristles were introduced by Dupont de Nemours. The first nylon toothbrush was called Doctor West's Miracle Toothbrush. Later, Americans were influenced by the disciplined hygiene habits of soldiers from World War II. They became increasingly concerned with the practice of good oral hygiene and quickly adopted the nylon toothbrush. What can you infer about the nylon toothbrush?

It worked better than any toothbrush before it.

Which line from the text supports this inference?