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Choose the word or phrase (A, B, C or D) that best completes each of the following sentence
They made an aerial survey; that is, they made a survey _________.
Hummock grasses grow in loose sand on the crest.
Eight kilometers is_________ equivalent to five miles.
Older people_________ a large proportion of those living in poverty.
Many plants and endangered species are now endangering of _______.
_______ is destroying larger areas of tropical rain forests.
The raw sewage needs to be ________ treated.
There are more than 20 ________ working on the water treatment project.
More and more people __________ of food poisoning nowadays.
The government _________ the flood victims with food, clothers and money.
Many people _________ that natural resources will never be used up.
Conservation is the protection of the _________ environment.
There are many ________ of pollution in our modern world.
Pay attention ________ all traffic signs when you are travelling in the street.
Many desert plants develop their long and shallow root system._________, they can collect much water as much as possible.
Deserts often include _________ and rocky surface.
___________ a desert requires a lot of careful preparation and survival skills.
Newcomers find it difficult_______ a new environment when studying abroad.
_____________ drive to fast. You will be fined.
Maintaining biodiversity is_________ great importance of preserving the precious and rare animals.
She never remembers to lock the door before leaving out, _____ she?
The authority has made a lot of great efforts ________ endangered species.
All rubbish and sewage has to be _________ treated before being discharged into seas and rivers.
This campaign for protecting endangered species appeals more than 20__________.
Some people ________ that animals and plants will never become extinct.
_____________ means the protection of natural environment.
___________ means a global list of endangered and vulnerable species.
It is important to raise the people’s _________ of environmental conservation.
Most environmental problems are ______ to lacks of awareness and understanding of humans.
There is_____________ universal store next to my house.
Choose the best option to complete the sentences
Barbate painted his bedroom black. It looks dark and dreary. He .................... a different color.
had to choose
Berbatov painted his bedroom black. It looks dark and dreary. He _____ a different color.
had to choose
Bob was absent; he ................ sick again.
shouldn't have been
Byrd knew that he would be able to reach the South Pole. It would be______.
impossible
Daisy is reading her English test because she has a test tomorrow. She_____ be studying.
David was deported on account of his expired visa. He ______ it renewed.
must have had
Despite a lot of concerns, sending people into space seems certain; we ............... see lunar cities and maybe even new human cultures on other planets.
Despite playing under strength, our football team, U23 Vietnam, ........... beat their rivals such as Qatar and Iraq.
Do you have to buy this hat? No, I _____. It isn't necessary.
mustn't
He advised me to take an English course. I_____ take it early.
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