When Keith visited Alaska, he lived in a igloo in the in the winter months as well as in spring.

Floods, earthquakes and other natural disaster happen all over the world, causing death and damage

So  when Whitman returned to Pacific, over thousand settlers went with him.

Pop Art was a movement 1950’s and 1960’s whom imagery was based onreadily recognized American products and people.

A mainframe computer is large and is usually used to operate (a network of ano computers.

The Egyptians first discovered that drying fruit preserved it, made it sweeter and improvement flavor.

Engines used space shuttles are much larger and more strong than the ones used in planes

The environment can be defined as all living and nonliving items in an area at specify time.

Neil seemed to have a good time at the party, ____?

I try to go jogging at least four times _______ week.

Many hundred years ago, there were many villages and little towns in England.

Algebra is the branch of mathematics concerned with operations on sets of numbers or other elements that often represented at symbols.

I've just spent two weeks looking _____an aunt of mine who's been ill. 

Choose the best answer to complete the following sentences: Gagarin was the first person to eat and drink in zero gravity.

The food that Mark is cooking in kitchen is smelling delicious

Let’s do something to protect the environment, _____ we?

Light can travel from the Sun to Earth in eight minute and twenty seconds.

An escalator is a moving stairway that transporting people from one point to another by means of linked thread

A smile can be observed, described, and reliably identify; it can als elicited and manipulated under experimental conditions

Philosophy, the inquiry into the nature of human knowledge, it is still a popular subject among university students

Superior to all others woods for shipbuilding, teak is also used for furniture, flooring, and general construction