..............the water clear but also prevent the river from overflowing. 

    

Every ten minutes, one kind of animal, plant or insect dies (1) ...... forever. If nothing is done about it, one million species that are alive today will have become (2) ...... twenty years from now.
The seas are in (3) ........ They are being filled with poison, industrial and nuclear (4) ......., chemical fertilizers and pesticides, sewage. The Mediterranean is already nearly dead. The North Sea is following. If nothing is done about it, one day soon nothing will be able to live in the seas.
The tropical rain forests, which are the (5) ...... of half the earth's living things (including many rare animals and plants), are being destroyed. If nothing is done about it, they will have disappeared in twenty years. The (6) ...... on the world's climate and on our agriculture and food supplies, will be disastrous.
Fortunately, somebody is trying to do something about it. In 1961, the World Wildlife Fund was (7) ...... - a small group of people who wanted to raise money to save animals and plants from extinction.
Today, the World Wildlife Fund is a large international organization. It has raised over $35 million for conservation projects, and has created or given (8) ...... to National Parks in five continents. It has helped 30 mammals and birds, including the tiger, to (9) ........ Perhaps this is not much, but it is a start. If more people give more money - and if more governments wake up to what is happening -perhaps the World Wildlife Fund will be able to help US to avoid the disaster that (10) ...... the natural world, and all of US will be with it.
(9)..................

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

I thought it was going to be a brilliant show because of the reviews, but it was only_____________.

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

His voice was barely________________above the loud music.

Choose the best answer:

since we have to be there in a hurry, we ........ take a taxi.

She has not yet got ______ her recent illness.

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

From winning an Olympic gold medal in 2000 to becoming an NBA champion in 2008, Kevin Garnet has shown…………to be one of the most talented players.

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

Ms.  Park will___________a certificate to each person who completed the course for pharmacy technicians.

The news sounds __________. We are happy to hear it. 

In my  ________, a person travelling alone sometimes meets with unexpected hospitality, and this trip was no exception.

Fill in each numbered blank with one suitable word or phrase. 
What is the Association of Southeast Asian Nations (ASEAN) and what is its purpose? The Association of Southeast Asian Nations (ASEAN) is a multilateral organization which was (1) _____ to give Southeast Asian states a forum to communicate (2) _____ each other. Since the region had a long colonial past and a history of endemic warfare, there has never been much peaceful and constructive (3) _____ between kings, presidents and other officials. A neutral forum was, (4) _____, a very useful development for all of those countries. ASEAN was formed as a result of the Bangkok (5) _____ of 1967 and initially had five members: Thailand, Malaysia, Indonesia, (6) _____ Philippines and Singapore. Brunei (7) _____ joined in 1984 after it had won independence from Britain. Vietnam became the seventh member of the group, officially joining in 1995. (8) _____ several years of negotiation, Myanmar and Laos joined in 1997 and the final member of the ten, Cambodia, joined in 1999. The only (9)__ state in Southeast Asia which is not a member of ASEAN is now East Timor. It is still (10) _____ vulnerable and fragile to be able to participate for the foreseeable future.
(5)..........................

If you go walking around the factory, ensure you have…………… clothing on.

Choose the best answer from the four options given (A, B, C, or D) to complete each sentence.

To…........... for the local- shopper discount, customers must show proof of residency.

Vincent Van Gogh is a famous painter from the 19th century. Van Gogh's paintings are sold at very high prices (1) ______many collectors want his paintings. But unfortunately, when he was (2) ______, he did not have a happy life.
Van Gogh was from a poor family in Holland and lived (3) _______his life at home. He lived a rather sad and (4) _______ life. He drew things that he could see (5) ______ around the quiet town of his parents' home or outside his window. This is why he painted things (6) _______the sky, his room and even himself. 
Van Gogh once cut off his own ear after drawing a picture of himself. He cut it off to (7) _______ the person that said the ear in Van Gogh's painting was not correct. It was very (8) _____ him to do such a thing.
Van Gogh was also (9) _________a crazy man. He really (10) ______become crazy, and was sent to a mental hospital. Sadly, he killed himself when he was just 37.
(3)...........................

Choose the best answer:

I think most children are creative enough to write .......... poems.

Bulldozing wetlands and cutting down ________ destroy ecosystems.  

If so, why does it not show proper respect for these reportedly less literate times _____ die out?

Choose the best answer:

The .............. of days in a week is seven.

Library users must remove all…………belongings when they leave the library for more than a half hour.

Choose the best answer:

We ..................... this car if it is expensive.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions: 

Population growth rate vary among regions and even among countries within the same region.