Each chemical element is characterized to the number of protons that an atom of that element contains, called its atomic number.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

__________ we had got on the plane, it started to rain.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

It's a good idea to see your doctor regularly for_________.

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

Keep silent! The baby (sleep) ____________ .

He promised to telephone _________________I have never heard from him again.

May I ask who was that man who was leaving the office when we came in?

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

Thousands of people came to see the Queen__________ the rain.

Today’s nuclear fission fuels are the remnants of which used to be a much more active mixture of radioactive and fissionable materials two billion years ago and earlier.

Choose the best answer from the four options given (marked A, B, C, or D) to complete each sentence: 

Mr. Long said that he _________ in Ho Chi Minh City.

When the children realized that they were by themselves in the dark, they became really frightening.

Mark the letter A, B, C, or D on your answer sheet to indicate the best answer in each of the following questions:

I wish I __________ a lot of money but I don’t.

Identify the error in each sentence: (A) The Vietnamese (B) is hard-working, (C) intelligent and (D) brave.

Choose the best answer: 
We’ll have flying cars in the future, ..............we can travel much faster and further.

VOCABULARY AND STRUCTURES: Choose the best options 

The man _______ opinions I respect most is my father. 

Choose the best option to complete the following sentences:

This test must be done ___________.

Some critics have called Theodore Dreiser’s book Sister Carrie a first modern novel because it broke so many traditions.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions:

The aim of these courses are to improve students’ language skills.

Composer John Cage, used many unusual objects as instrument in his music, including cowbells, flower pots, tin cans, and saw blades.

All root vegetables grow underground, and not all vegetables that grow underground are roots

Choose the best option A, B, C or D to make meaningful sentence: " Huy’s accident prevented him _______ taking part in the running race."

Either Mr. Anderson or Ms Wiggins are going to teach our class today.