The existence of different kinds of animals and plants which make a balanced environment is called _____________   

Dolphins are mammals,_______fish. They are warm blooded, and they give birth to one baby, called a calf, at a time

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It is written in English, which is not systematically phonetic that ....... difficulties to foreigners.

Choose the best answer to complete each sentence.

-Mary: When was Marie Curie born? -Jack: ________.

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She eats too much and now she is .......

 Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

To Vietnamese students, the___________ examination to university is very difficult.

The referee     the coin to decide which team would kick the ball first.

Choose the best answer (A, B, C or D) to complete the sentences:

She was late for work ______ she missed the bus.

Choose the underlined part that needs correction

If I had money, I will buy a car.

Can you name some countries having subtropical climate ___________ the world?

Choose the word or phrase that best completes each sentence below.

John is _________on climbing mountains.

Choose the best answer among A, B, C or D to make the meaningfull sentence: "A simple mixture of glucose ____ water can save lives in many parts of the world."

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Do we ....... attend the dance?

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Which of the following things do people usually do in a 'fitting room'?

Choose the best answer to complete the sentence.

Lam didn’t ____________ do morning exercise, so now he is getting fat.

 Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Boy, stop reading. ____________ the book down and go to bed.

Choose the best answer

My mother ________the responsibility for running the household.

 Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Sometimes it is_____________ to find suitable books for our children.

 Choose the best answer among the A, B, C, or D provided to finish each of the incomplete sentences below:

Read the book____________ and you can find the information you need.

The very first night I was in Australia, I couldn’t have slept until early in the morning.

When his wife gave birth to a baby boy, Mr, Nam became the sole ____________ .