Scientists have high confidence that global temperatures will continue to rise for decades to come, largely due to (4) _________gases produced by human activities.

Read the passage and choose the best option to fils each blank
The Earth’s average (1) _________has increased by about 2 degrees Fahrenheit during the 20th century. What’s the big deal?
Two degrees may sound like a small amount, but it’s an unusual event in our planet’s recent history. Earth’s climate record, (2) _________in tree rings, ice cores, and coral reefs, shows that the global average temperature is stable over long periods of time. (3) _________, small changes in temperature correspond to enormous changes in the environment.
Scientists have high confidence that global temperatures will continue to rise for decades to come, largely due to (4) _________gases produced by human activities. The Intergovernmental Panel on Climate Change (IPCC), (5) _________more than 1,300 scientists from the United States and other countries, forecasts a temperature rise of 2.5 to 10 degrees Fahrenheit over the next century.

Choose the word which has the underlined part pronounced differently

Combine the sentences, using perfect gerunds or perfect participles
Thea had broken the flowerpot. She denied it.
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After they had spent 2 hours shopping, they came home with plenty of new clothes.
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Read the passage and choose the best answer to each of the following questions
Trees contribute to their environment by providing oxygen, improving air quality, conserving water, preserving soil, and supporting wildlife. During the process of photosynthesis, trees take in carbon dioxide and produce the oxygen we breathe. Trees, shrubs and turf also filter air by removing dust and absorbing other pollutants like carbon monoxide, sulfur dioxide and nitrogen dioxide. After trees intercept unhealthy particles, rain washes them to the ground.
Trees control climate by moderating the effects of the sun, rain and wind. Leaves absorb and filter the sun’s radiant energy, keeping things cool in summer. Trees also preserve warmth by providing a screen from harsh wind. In addition to influencing wind speed and direction, they shield US from the downfall of rain, sleet and hail. Trees also tower the air temperature and reduce the heat intensity of the greenhouse effect by maintaining tow levels of carbon dioxide.
Both above and below ground, trees are essential to the eco-systems in which they reside. Far reaching roots hold soil in place and fight erosion. Trees absorb and store rainwater, which reduces runoff and sediment deposit after storms. This helps the ground water supply recharge, prevents the transport of chemicals into streams and prevents flooding. Fallen leaves make excellent compost that enriches soil.
Many animals, including elephants, koalas and giraffes eat leaves for nourishment. Fruits are eaten by monkeys, and nectar is a favorite of birds, bats and many insects. Animals also eat much of the same fruits that we enjoy. This process helps disperse seeds over great distances. Of course, hundreds of living creatures call trees their home. Leaf-covered branches keep many animals, such as birds and squirrels, out of the reach of predators.
(From Importance and Value of Trees - savatree.com)

Complete the following sentences, using the correct form of the verbs given in the box
Send/ buy/ overlook
The book_________yesterday by my father is about the development of technology.

Choose the word with a different stress pattern.

Choose the best option to complete each of the following sentences.

In the short story “The last leaf’ by o. Henry, why is old Behrman’s work a masterpiece?

Jacob’s parents got him a_________to help with his physics.

Choose the word which has the underlined part pronounced differently

_________hold soil in place and fight erosion.

Because people have cut down lots of trees, now they have to suffer devastating floods.
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Choose the word with a different stress pattern.