Without alphabetical order, dictionaries would be impossibility to use

Please open ..................door. 

Psychologists at the University of Kansas has studied the effects of the color of a room on people’s behaviors

People are destroying the air by adding ...... to it.

Ocean currents that help transfer heat from the equator to the poles, thereby creating a more balanced global environment.

................... blue is .................. color I like. 

There is nothing to eat, _    ?

Hoover Dam in Nevada is a multi purpose structure that provides flood control, hydroelectric powerful, and drinking and irrigation water

Nga speaks English very well, _    ?

Interest in automatic data Processing has grown rapid since the first large calculators were introduced in 1950.

My mother doesn’t care how much does the washing machine cost because she is going to buy it anyway

Choose the correct answer to complete the sentence. "Climate change leads _____ numerous catastrophic consequences"

Thanks to a considerable number of material data, we know pretty much about ancient Egypt, but few historical records of Babylon are available.

The authorities are worried about the increase of drug abuse.

Thanks to his obstinacy, he achieved what he wanted. If he were discouraged earlier by this failures, he would not have reached his aims.

After a while, the track we have been following became thick undergrowth.

Too much water makes plants turning brown on the edges of their leaves.

Choose the correct answer to complete the sentence. "It's possible that by the end of the 21st century, the rainforest will have _______ disappeared"

I wish you ______________ making that noise. It's bothering me. 

There are many ways to preserve fruit, for example freezing, canning and to dry

Among the problems facing the national park's manager, the most serious ones are those of ...... and expansion.