The world is divided into two hemispheres, the North and the South. Because our Earth, tilted on its axis, revolves around the sun, each hemisphere experiences a part of the year when they are closer to the sun. When the Northern hemisphere leans towards the sun, it experiences summer. At this time, the Southern hemisphere is farther away, experiencing winter. The opposite is also true. While the Southern hemisphere enjoys summer, winter occurs in the North. As an example, Canada has winter in December, but in Australia, it is in July. In line 6, the word “it” refers to _______. A. winter B. Canada C. summer D. December It requires millions of silkworms to produce enough silk to supply the world. Luckily, they are also eaten by people after being harvested for silk. Both Koreans and Chinese enjoy silkworms as a cheap and delicious snack. In line 1, the word “they” refers to _______. A. silks B. people C. Chinese D. silkworms Thomas was very picky about what he drank. He refused to drink water. He’d never drink his milk. He also hated any drinks that contained fruit or vegetable juice. Thomas made an exception for one drink though. He really enjoyed drinking apple juice. He thought it neither too sweet nor too sour. His mother would always complain about how picky her son was, but she was at least thankful his favorite beverage was healthy. In line 3, the word “it” refers to _______. A. Thomas B. any drink C. apple juice D. beverage Pyramids are structures that were built by many ancient civilizations. Pyramids have been found in China, France, Mexico, Greece, India, and Egypt. The purposes of these ancient pyramids are not all the same. Some were built for rituals, some for ceremony, and others as tombs for the nobility. The most famous and notable pyramids are the Great Pyramids in Giza, Egypt. They are three pyramids which were built by three pharaohs around 5,000 years ago. The oldest one is considered one of the Seven Wonders of the World. The structures of these pyramids required serious engineering and careful architectural planning, along with many skilled laborers. Not only are the pyramids massive in size, but they were also built in relation to the night sky. One of the narrow tunnels from the King's burial chamber in the oldest pyramid points directly to a constellation associated with Osiris, the Egyptian god of resurrection. Also, a tunnel from the Queen's burial chamber points to a star associated with Isis, the wife of Osiris. This is an impressive architectural feat. The pyramids were built from colossal blocks made from huge stones chiseled with copper from stone quarries. These blocks were then moved into position, although there is archeological disagreement about what methods ancient builders used to do this. It is difficult for archeologists to figure out how Ancient Egyptians could move these heavy stones. Without modern technology, it is hard to imagine how it was possible. Even so, we can get hints from artifacts left behind by Ancient Egyptians. Ancient drawings have revealed that the sheer number of workers could have made this possible. These pictures show that many men pulling a stone could have moved it. The writings of Herodotus also provide information about how the pyramids were built, citing a system of stairs and cranes. Scientists continue to study the pyramids in hopes of eliminating some of the mystery. Still, there are many questions about the pyramids that go unanswered. 1. In line 4, the word Some refers to _______. A. the rituals B. the purposes C. the pyramids D. the civilizations 2. In line 24, the word it refers to _______. A. a man B. a stone C. a worker D. a drawing