Direction: Read the following passage carefully and answer the given questions.
PASSAGE
After 500 years, Christopher Columbus’s ship the Santa Maria were claimed to be found by archaeological investigators led by Barry Clifford. Christopher Columbus’s flagship, the Santa Maria, got wrecked in the Caribbean. The vessel’s long-lost remains was claimed to be lying at the bottom of the sea off the north coast of Haiti. An expedition was mounted by team of Barry Clifford a decade ago. He had found and photographed the wreck but had not realized its probable identity. Tentatively identifying the wreck as the Santa Maria was made possible by quite separate discoveries made by other archaeologists in 2003 suggesting that the probable location of Columbus’ fort relatively nearby. Santa Maria was the largest of the three ships used by Christopher Columbus in his first voyage. The ship was constructed in 1460 and was struck in 1492. The ship was used by Columbus in 1492 to find a direct trade route to India.
MEANINGS OF DIFFICULT WORDS/PHRASES
(1) archaeological (Adj.) : related to/dealing with/ devoted to study of prehistoric people and their cultures
(2) flagship (N.) : the ship that carries the commander of a fleet and flies his flag
(3) tentatively (Adv.) : in a way that is not definite/ certain because you may want to change it later

Direction: In the following questions, you have two passages with 5 questions in each passage. Read the passages carefully and choose the best answer to each question out of the four alternatives.
PASSAGE
A dolphin is an aquatic mammal. Dolphins are extremely intelligent and sociable animals and have their own way to communicate with each other using special sounds. Although they are often mistaken for fish, dolphins are actually mammals. They are members of the Cetacea (pronounced set-ay-shia) family, which also contains whales and porpoises. One way of telling the difference between a cetacean and a fish is by looking at their tails. You can tell a cetacean because their tail fins (called flukes) are horizontal and move up and down. Fish have vertical tails which move from side to side. A dolphin’s body is designed to help them move quickly and easily through water. The dolphin’s fluke propels it through the water. On its back is a curved dorsal fin and on each side of the dolphin is a pectoral fin. The bump on a dolphins head is known as the melon. They trap their prey by using their teeth. Dolphins use a type of sonar to detect where objects are around them. This is called echolocation. Echolocation works when a dolphin bounces a high pitched sound off an object and then listens for the echo to come back. It is a very useful way for dolphins to find food and navigate. Dolphins communicate with each other through clicks, squeaks and whistles. They use these special sounds to greet each other and to indicate if they are in distress. Dolphins live in the sea, but they can’t breathe under water! They breathe through a blowhole and have to come up for air every 15 minutes.