There are certain 1)_____________ in almost every culture in the world. Even societies that are very rational and 2)_______ are sometimes a little bit superstitious. For example, the United States is a country that is very advanced in science and technology. But American people sometimes believe in superstitions. Americans consider 13" an unlucky number. Some people in the United States also believe that if Friday falls on the 13th day of the month, they will have bad luck.Some Americans believe they will have bad fuck if they walk 3)________. Even if people say they are not superstitious, they will often avoid walking under a ladder. Often people consider it unlucky to 4)___________. If a person breaks a mirror, he or she will have seven years of bad luck. Americans also think they will have bad luck if a black cat crosses their path. A long time ago, people believed that black cats were actually witches.However, some things are thought to bring good luck. For instance, some Americans believe if they dream about a white cat, or step on their own 5)__________, or put a mirror just across the door, will have good luck. Or if they catch a 6)__________ on the first day of autumn, they will have good luck all winter. Others think if they 7)______________ all the candles on their birthday cake in one blow, they will get whatever they want. And some people think they will have good luck if they find a penny on the ground and pick it up.Q1: What is the passage mainly about?C Superstitions in the United States.Q2: According to the passage, what is considered as bad luck?A Walking under a ladder.Q3: Why is it considered bad luck to see a black cat crossing one’s path?B Because black cats were thought to be witches.Q4: According to the passage, what will bring people good luck?C Finding a penny on the ground and picking it up.