Read the passageand choose the best answer.

The wind controls our planet's weather and climate. But how much do we understand about this complete force (23)________can kill and spread fear. One night of October 15, 1987, the south of England was (24) ________ by strong winds. Gusts of over 130 km/h blew through the region. Nineteen people were killed, £1.5-billion worth of damage was (25) ________ and 19 billion trees were blown down in just a few hours.Although people thought of this as hurricane, the winds of 1987 were only a (26) ________ 7 storm. They remain far better known than much more serious storms of January 25, 1990, when most of Britain was hit by daytime winds of up to 173 km/h. On this occasion, 47 people were killed, even though, unlike in 1987, the weather forecastersissued accurate warnings. Extreme weather events such as these are dramatic reminders of the (27) ________of the wind. It is one part of the weather that people generally do not give a second thought to, but across the world the wind plays a crucial role in people's lives.

Mark the letter to indicate the word whose underlined part that needs correction.

Read the passage and choose the best answer.

Man discovered fire many thousands years ago. The first time he saw fire was probably when a tree was struck by lightning. He soon learned how to make fire for himself. However man probably made his fire by rubbing two sticks together.

Fire was very important to man. He needed fire to keep himself warm at night. He used fire to cook his food. He used fire to frighten away enemies and wild animals. In some parts of the world he used fire to signal messages. Red Indians, for example, used fire to make smoke signals. In some other countries people lit fires to warn their friends of danger.Fire was very also used to give light. Before the invention of oil lamp, men used burning sticks as torches. And before man discovered gas and electricity, he hung small fires in wire baskets from posts to light the streets.

One man even used fire to tell the time. He invented a candle clock. He made a candle that took exactly twelve hours to burn. Then he marked this candle in twelve equal parts. He lit the candle and could tell the time by counting the number of parts left of the burning candle. But the candle clock did not always work well. If there was a wind blowing on the candle, the flame burned too quickly.