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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 1 to 5.

A rainbow is an optical display of color that usually appears in the sky when a beam of sunlight refracts through millions of raindrops. Each (1)________ color from the spectrum is then sent to your eyes. For this to happen, the angle between the ray of light, the raindrop and the human eye must be between 40 and 42 degrees.

After studying rainbows in (2)________, Sir Isaac Newton was able to explain how they are formed. However, he was color blind, so he had to rely on the eyes of his assistant, who could easily (3)________all the seven colors: red, orange, yellow, green, blue, indigo and violet. His assistant could also clearly tell the difference between indigo and violet

There are two types of rainbows. Primary rainbows are the most common and have the most distinctive colors, with red appearing on the outside of the arc and violet on the inside. Secondary rainbows are unusual because the light is reflected twice within the raindrop before it (4)________ a rainbow, so the colors are in reverse order and not as bright as primary rainbows.

There is a popular myth that if you reach the end of a rainbow, you will find a pot of gold waiting for you. In fact, it is impossible to do this, because a rainbow has no end - as you go towards the point where the rainbow seems to touch the ground, it moves away from you as quickly as you (5)________.

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 46 to 50.

What make a good souvenir?

On my desk at home, I have a collection of souvenirs; objects that remind me of places I‟ve visited and important events in my life. These objects include a model boat that I saw being carved from a piece of wood on a Caribbean island, a piece of lava that emerged hot from a volcano in the year I was born, and a shell (46) _____ on my favourite childhood beach.

Unlike everything else, from which memory and detail fades, it is as if the longer you hold on to certain objects, the (47) ________ their associations with the past become, and the sharper the recollections that gather around them. They are, (48) ________, real souvenirs, encapsulations not only of the place, but of your time in the place. But these days, the term “real souvenirs” sounds like a contradiction in terms, and this is because the objects sold to tourists as souvenirs are often cheap mass-produced imports that have nothing to do with the place at all.

It‟s often the (49) _____ that the best souvenirs, like my shell, are found rather than purchased, but browsing for souvenirs can also be a fun holiday activity. But if you are buying souvenirs on holiday this summer, make sure they (50) ________ the reality test. A good souvenir is not just made in the area where it is bought, it also says something about the culture of that area. It is something made by local people using sustainable local materials, and because you are effectively supporting the local economy, it shouldn‟t come too cheap, either.