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

Electric wires carry current for lighting and outlets designing for household appliances.

We are not allowed to enter this construction site. A block of flats is being built here and it is dangerous to walk because you may get hurt by a fallen brick or some other objects.

Although almost all insects have six legs, a immature insect may not have any.

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

It’s ________ that you should follow a regular training programme.

Mark the letter A, B, C or D to indicate the correct answer to each of the following questions.

One way of increasing your speed of comprehension is to learn all your vocabulary without the use of your own ______________.

The local economy which once used to be in crisis now depends to a great extent on menial jobs provided by the recent development of ecotourism.

The manufacture and production of steel was one of the industries on which the country prosperity was founded.

Chọn một từ đúng trong ngoặc để hoàn thành các câu sau:

We feel very ___________ today.

The strength, size, and surefootedness of the Hama make its as excellentcy beast of burden in mountainous regions today as it was in the past

The pilot along with his passengers _    rescued last night.

Choose the letter A, B, C, D to indicate the correct answer to each of the following questions:

My sister is going _________ this house.

Many exercises such as calisthenics, running, or to swim involve producing muscle tension through a range of movements that are called isotonics.

Both a term paper and a final exam is often required for a college class.

Many heavy work that was once done by hand can now be done more easily with the help of compressed air.

A good artist, like a good engineer, learns as much from their mistakes as from successes

Identify the one underlined word or phrase A, B, C, or D that must be changed for the sentence to be correct:

Tom watches usually television in the evening. 

Choose the best answer A, B, C or D for the sentence: "I like most sports but tennis is my first _______."

She suggested ___________ the night away from home.

Choose the best option A, B, C or D to make meaningful sentence: "Please have this luggage taken to my room _____ the porter."

The fragrant leaves of the laurel plant to sell commercially as bay leaves and are used for seasoning foods.