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I'm taking a test and have to guess the right answer to the question after the article. Article: When it comes to movies, we usually think of big actors, big budgets, big screens, and, if lucky, big profits. Unfortunately, that puts up some big barriers for aspiring young filmmakers and their dreams. However, thanks to easy access to technology, that's all changing. All one really needs nowadays is a camera, a computer, an Internet connection, and, of course, a good idea. With that, you can enter the microfilm world. Shooting a movie using friends and family as the cast has become a common class project for high school students. After a little editing on a laptop, some even decide their creation is worth sharing online. Microfilms are shot within a short period of time and last only a few minutes or even shorter. Most are completed on an extremely small budget and offer a cheap way for grassroots directors to realize their dreams. With a range of film festivals, they have taken off due to being perfectly suited to new media platforms such as mobile phones and notebook computers. They are also easily shared across social networks and microblogs. But microfilms are far different from the shorts commonly found on YouTube. A microfilm must have a solid and thoughtful plot. Most importantly, the movies are easily distributed and there can be no concern about long-term box office profits. Most people who upload a microfilm simply see it as an easy way to share their fun with a few friends and family. Others may be curious about what sort of reaction their production may receive from the general public. Question: What's the best title for the passage? Options: A: A look at microfilms B: The challenge of big films C: A new class project D: The secret of successful microfilms
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A

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I'm taking a test and have to guess the right answer to the question after the article. Article: Headington Oxford Summer School welcomes all students throughout the world and provides a fantastic summer school experience. It is close enough to visit London, which is a beautiful city in its own right and also has a number of attractions nearby. London: A trip to the UK would not be complete without a visit to the capital city of London. During the 'London Day' all students will have a chance to see famous tourist attractions such as Big Ben, the Houses of Parliament and Trafalgar Square. The students will also enjoy a boat trip on River Thames and a ride to the top of the Shard, an 87-storey building in London for a breathtaking view of the city. There will also be dinner in a London restaurant before heading back to the school. Thorpe Park: With over thirty extreme rides and attractions, and one of the world's most terrifying roller coasters, enjoy an exciting day out at one of the nation's most popular theme park Bath: Spend the day exploring this beautiful historic city with impressive architecture, including a visit to the famous Roman baths. Students also have the opportunity of a fantastic shopping experience in this famous market towns! Thinktank Science Museum & Birmingham: Spend the morning in the interactive state of the art science centre followed by an afternoon exploring Birmingham with time for shopping in the Bullring Shopping Centre. Warwick & Stratford: Visit one of medieval England's most beautiful castles full of history, tales and adventure. Afterwards, enjoy exploring the picturesque streets of Stratford Upon Avon, the birthplace of William Shakespeare. Brighton: This beautiful seaside town provides a fun-filled day out for all students. The day includes a visit to the Royal Pavilion and its museum as well as Brighton Pier and beach. There is also time for shopping in the famous Brighton Lanes before heading back to school. Question: Where can you overlook the whole city when touring London? Options: A: On top of the Shard B: On River Thames C: In a London restaurant D: At the Houses of Parliament
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A

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I'm taking a test and have to guess the right answer to the question after the article. Article: Supply and demand is perhaps one of the most basic concepts of economics and it is the backbone of a market economy. Demand refers to how much of a product or service is desired by buyers. The quantity demanded is the amount of a product people are willing to buy at a certain price; the relationship between price and quantity demanded is known as the demand relationship. Supply represents how much the market can offer. The quantity supplied refers to the amount of a certain goods producers are willing to supply when receiving a certain price. The relationship between price and how much of a goods or service is supplied to the market is known as the supply relationship. Price, therefore, is a reflection of supply and demand. The law of demand states that, if all other factors remain equal, the higher the price of a product, the fewer people will demand that product. The amount of goods that buyers purchase at a higher price is less as the price of a product goes up, so does the opportunity cost of buying that product. Like the law of demand, the law of supply shows the quantities that will be sold at a certain price. But unlike the law of demand, the supply relationship shows an upward slope. This means that the higher the price, the higher the quantity supplied. Producers supply more at a higher price because selling a higher quantity at a higher price increases the whole income. Now that we know the laws of supply and demand, let's turn to an example to show how supply and demand affect price. Imagine that a CD of your favorite band is sold for $20. Because the record company's previous analysis showed that consumers will not demand CDs at a price higher than $20, only ten CDs were sold because the opportunity cost is too high for suppliers to produce more. If, however, the ten CDs are demanded by 20 people, the price will then rise. As a result, the rise in price should cause more CDs to be supplied as the supply relationship shows that the higher the price, the higher the quantity supplied. If,... Question: We know from the passage that changes in the prices of product cause changes in _ . Options: A: income and expense B: invention and production C: market and society D: supply and demand
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D