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

Our scientists are trying to develop____________to some of the chemicals we currently use to clean our machinery.

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

 Although there are over fifty_________groups, we all use Vietnamese as the official language.

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35. The players________ the referee’s decision.

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.

For thousands of years, man has created sweet-smelling substances from wood, herbs and flowers and using them for perfumes or medicine.

Choose the best answer:
He made one last futile effort to convince her and left home.

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.

It is recommended that people to take regular exercise.

When the U.S. and England proclaimed war against Iraq, the anti war protesters all around the world practically ______ all the roads to the famous squares.

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 harder he tried, the worst he danced before the large audience .

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.

We are going to visit our grandparents when we will finish our final exams.

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.

Since January this year, Joe has suffered two injuries, one to his ankle and the other in New York.

A letter. .............. by a copy of the press release was mailed to the public relations department yesterday.

Please......... your survey results to the director by the date specified at the bottom of the screen.

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My younger brother is ________________.

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

Entering the meeting late, he tried to_______ an excuse, still the strict chairman of the board told him to leave the room.

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

Question 13. As estimated in the report, the Covid 19 has______ great damage to not only Vietnam but the rest of the World as well.

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.

f I had enough money, I would have travelled around the world.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

 In the USA, Americans are encouraged to look directly at people when speaking to them because it shows interest in what they are saying and is thought to carry a sense of honesty.

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.

It is difficult to write rules that tell exactly when we should apologize, and it is not difficult to learn how to do it.

If he __________ a thorough knowledge of English, he could have applied for this post.
 

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

People often avoid eating squash, pumpkin, melon and peanuts before their exams because they suppose that it is a____________.

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.

Bells told people of happy events, such as weddings and born or, sometimes had to announce unpleasant events such as a death.