Choose the correct answer to each of the following questions. "For environmental safety, we need to find ways to reduce ______ of fumes and smoke of factories."

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Have you seen Peter lately? I’ve been looking .............. him this week. 

Choose the part that needs correcting in each of the questions below

We (A)should (B)have played (C)much better than (D)we do.

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She asked me where I .............. from.

The ASEAN Para-Games is a biannual  multi-sport  ................ held after every Southeast Asian Games for athletes with physical disabilities.

Ask people what is happening to the worlds population and they are likely to say it is _______ .

-Lan: "Happy birthday! This is a small present for you." – Nga _____ "

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His life was hard ................... he studied very well.

Over-exploitation for food, pets, and medicine, pollution, and disease are recognized _______ a serious threat _______ extinction.

Choose the correct answer to complete the sentence. "We might stop here _____ you don't change your way of speaking."

Choose the correct answer to each of the following questions. "I like swimming ____ my sister likes jogging and dancing."

Choose the correct answer to each of the following questions. "People ______ that Africa was most likely losing $26m in tourism revenue a year."

It is reported that humans are the main reason for most species' declines and habitat _______ and degradation are the leading threats.

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She is too .......... with her work, so she doesn’t have time to go out with her friends. 

Choose the correct answer in each sentence.

Employee assessments are _______________   carried out in December but may be delayed until January.

I’m afraid I can’t help you. I am completely _____ astrophysics.

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We should do something immediately to conserve _______ nature.

His life is a rich source of inspiration for many writers and poets.

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Scientists are looking for an ........... way to reduce energy consumption.

Read and choose the appropriate option: 
WHY DO ANIMALS GO EXTINCT? Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (41)_______ they live changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die. Some animals go extinct because thay cannot (42) _______ with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving means that the animals are changing (43) _______ from generation to generation. Small differences between parents, children, and grandchildren slowly add up over many, many generations. Eventually, a different kind of animal evolves. [evolve: tiến hóa] Sometimes many of the animals on Earth go extinct at the (44) _______ time. Scientists call this a mass extinction. Scientists think there (45) _______ at least five mass extinctions in Earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.
(42)..........................

We had planned to spend the summer in Greece, but ____ had obviously decided otherwise.